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Showing posts with label #UHF. Show all posts
Showing posts with label #UHF. Show all posts

Tuesday, July 2, 2019

Mini Walkie Talkie Portable 2-Way Radio Transceiver & Earpiece Headset USB Charging UHF 400-480MHz Earphone

Mini Walkie Talkie Portable 2-Way Radio Transceiver & Earpiece Headset USB Charging UHF 400-480MHz Earphone




Description:
The two-way radio is designed in a convenient size for easy portability.
No matter putting it in the pocket or string it around the neck, we can talk with others easily with the earpiece. 
This radio is perfect for teams looking to improve their communication.
Also these mini radios are easy to hide in the pocket and will not affect the dress.
 
Specification:
Color: Black, White, Blue, Yellow, Red
Material: ABS
Input: 5V, 500 mA
Frequency: 400-480MHZ
Battery capacity: 3.7V 500mAh
Channel capacity: 16
Output power: 0.5W
Modulation Limitation:≤ ± 5KHZ
TX current: 300MAh
Audio power: ≥ 400mW
Rated voltage: 3.7V
Net weight: 25g (1pcs)
Size: 66 * 26 * 14mm / 2.6 * 0.9 * 0.6 inch
 
Features:
One-piece PC body, ultra-small, ultra-light.
Independent signal amplifier technology, to ensure clear sound quality.
Tight body design, waterproof, dustproof.
Low-power consumption for long working time.
Perfects for hotel staff, shopping mall staff, supermarket staff, hairdressing salon staff,
hospital staff or anyone needing to coordinate communications between multiple teams or units.
 
Package Included:
1 or 2 x Two-Way Radio
1 or 2 x Earphone
1 or 2 x USB Charging Cable
1 or 2 x Lanyard
1 x User Manual

Tuesday, June 25, 2019

UHF 40 Channel Wireless Microphone Headset Mic for KTV Stage Conference Teaching

UHF 40 Channel Wireless Microphone Headset Mic for KTV Stage Conference Teaching




Features:
 
Novel style
Be evern qaulity
Easy to carry
Applicable objects: Musical instruments, computers, stage, conference dedicated, ktv dedicated, interview dedicated, home, recording dedicated, radio and television dedicated
 
SYSTEM SPECIFICATIONS
Modulation: ModeDigital 
Frequency: ModulateOscillation PLL SynthesizedI 
Carrier Frequency Range: UHF 500.980MHZ
Preset Frequencies: 48(auto paring)
Frequency Response: 75Hz~18kHz±3dB
Max Deviation Range: ±50KHZ (with level limiting)
T.H.D.<1.0%@1kHz
Working RangeI: Up to 50m
RF Carrier Stabilit: 土0.005%(-10°C-50°C)
 
MINI WIRELESS RECEIVER(METAL)
Power Supply: Built-in Li-on rechargeable battery(500MA)
Power Consumption: 80mA
Battery Life: Up to 6 hrs
Recharging Time: About 1 hour(5V/1A)
 
HANDHELD MICROPHONE (METAL)
Sound Cartridge: Capacitive
Carrier Frequency Power: 30mw
Battery Type: Rechargeable batteries 450mA
Working Time: 4hrs
 
Note:
 
In order to avoid interference from other wireless devices. this items is designed with 25 selectable frequencies, when the microphone is powered on, just press the " One Key Auto Pairing"to change the frequency, the receiver will pair with transmitter frequency automatically.
If the AF/RF on receiver is lighted, that means they are paired and ready to use.
There are battery indicators on both mic and transmitter, please change battery for mic when battery is low or charge receiver with the USB cable included .(Handhel mic works up to 8 hours and receiver lasts for 6 hours when fully charged by 1 hour.
In order to enjoy better transmission, please don' t fold or cut the antenna on the receiver.
If you will not use the item in a short time, please take out the battery from the handheld mic.x If any problem caused, please don' t dissemble the item by yourself.please turn to the local distributor for help.
 
Package Included:
 
1 x MINI Wireless Receiver(METAL)
1 x Handheld Microphone (METAL)
1 x USB Cable
1 x Transmitter

Friday, November 23, 2018

Zastone V77 Portable Walkie Talkie UHF 400-470MHz HF Transceiver Communicator Two Way Radio Ham

Zastone V77 Portable Walkie Talkie UHF 400-470MHz HF Transceiver Communicator Two Way Radio Ham







Features :

1. CTCSS 38/DCS 83
2. Support PC programming
3. Power save function
4. SOS function
5. V OX function
6. TOT function
7. Support MIC-USB charging
8. BCLO busy lock function
9. Squelch grade setting
10. English/Chinese nicedial function

Specification :

General Transmitter
Frequency 400-470MHz Output power ≤3W
Voltage DC 3.7V Modulation mode Adjustable frequency
Channel 16Channels Deviation ≤0.5KHz
Antenna Loaded Antenna Residual wave radiation 60db
Antenna impendence 50Ω Current ≤1500mA
Reveiver
Working mode Simplex Sensitivity -122dBm(12DB SINAD)
Squelch sensitivity 0.2UV
Grounding method Negative pole Receive current 300mA
Intermodulation interference 50dB
Size 58x180x21.9mm Audio power 500mW
Squelch Current 20mA

Package includeds :

1 x Zastone ZT-V77 Radio
1 x Battery
1 x Charger (US/EU plug optional) Also come with an adapter according to your country.
1 x Clip
1 x User Manual




Thursday, November 22, 2018

Zastone 889G GPS 10KM Walkie Talkie 10W 999CH UHF 400-520 VHF 134-174MHz CB Two Way Radio Transceiver

Zastone 889G GPS 10KM Walkie Talkie 10W 999CH UHF 400-520 VHF 134-174MHz CB Two Way Radio Transceiver






Features :

GPS navigation: Fix position; Distance measurement; Real-time position sharing.
Mode: Duplex mode;Night mode, Backlight.
Relay Station Function.
Screen: 1.77inch LCD color display.
Language: English and Chinese display and voice.
SOS: Emergency alarm calling police function.
Stopwatch: With stopwatch function.
 
Specification :

Frequency: VHF 134-174MHz, UHF 400-520MHz
Channels: 999
Transmission range: 3-10km
Penetration distance: 1-40F
Output power: 10W/5W/1W
Antenna: Loaded antenna
Antenna impendence: 50Ω
Current: Standby 80mA,Talking 220mA
Battery capacity: 3000mAh
Dimensions: 132.7*56*36mm
Power supply voltage: 8V DC
 
Package includeds :

1 x Zastone ZT-889G walkie talkie
1 x 3000mAh Lithium Battery
1 x Charger (Also come with an adapter according to your country)
1 x Clip
1 x English User Manual
 


Wednesday, November 21, 2018

Zastone 218 Two Way Radio Dual Band VHF 136-174MHz UHF 400-470MHz Mobile Car Radio Transceiver 25W Mini CB Radio Station

Zastone 218 Two Way Radio Dual Band VHF 136-174MHz UHF 400-470MHz Mobile Car Radio Transceiver 25W Mini CB Radio Station






Features :
Dual Receiving. A&B channel switch can receive simultaneously on different brands.
Dual Compandor.
Dual Scrambler.
Dual DTMF encode/decode.
Dual ANI code.
UHF/VHF: 25W
UHF/VHF:128 memory channels
Remote stun and monitor.
Team calling and group calling.
Specification :

Frequency range VHF: 136-174MHz
UHF: 400-480MHz
Channel 128
System F3E(FM)
Antenna Impedance 50Ω
Frequency stability ±2.5ppm@-10℃ to +60℃
Input voltage Direct current 13.8V(±15%), Negative grounding
Output power High power: ≤25W; Middle power: ≤10W; Low power: ≤5W
Max frequency deviation ±5KHz
Working current Receive 0.3A (SQL)
Transmit 5A (Max)
Noise radiation ≤-60dB
Flexibility ≤0.2uV(12dB SINAD)
Dimension 106*105*30mm
weight 500g

Package includeds :

1 x Zastone Z218 Car Mobile Radio Transceiver
1 x Hand Microphone
1 x Assembly Supporting Rack
1 x Power Cable
1 x Screw
1 x User Manual

Monday, October 8, 2018

2.4G Digital Transmission Mini Tour Guide Audio System UHF Wireless Transmitter Receiver Interpreter

2.4G Digital Transmission Mini Tour Guide Audio System UHF Wireless Transmitter Receiver Interpreter



Specifications:
Type A: Tourist machine
B: Guide machine 
Receiving sensitivity -85dBm
Call distance 1-100m / 39.37-3937inch
Guide machine work 12 hours
Tourist machine work 30 hours
Signal to noise ratio 80dB
Battery Polymer battery
Working frequency ISM 2.4GHz free band
Size 35 x 10.5 x 81.4mm / 1.38 x 0.41 x 3.20inch
Weight 29g

 
Features:
100m launch distance.

Long standby time.
The tour guide can speak and play music.
Independent explanation is not disturbed.
Ear-hook listening without noise.

 
Package Includes:
A: 1 x Tourist machine
    1 x Earphone
    1 x Lanyard
Or
B: 1 x Guide machine
    1 x Microphone
    1 x Lanyard


Sunday, September 30, 2018

Auto RF Modulator Compact RF Modulator Audio Video TV Converter RHF UHF Signal Amplifier AC230V

Auto RF Modulator Compact RF Modulator Audio Video TV Converter RHF UHF Signal Amplifier AC230V




Features:

Humanized design, easy to install and operate.
High performance circuit design provides accurate picture reproduction.
Can convert audio and video to RF via channel. 
VHF / UHF operating frequency from 47 to 868 MHz.
With selectable output level of audio and video.
Compatible with all local CATV system.
 
Specification:

Plug Type: US / EU / AU(Optional)
Color: Blue
Material: ABS
Input: AC230V/110V, 50Hz
Max. Power: 3W
Frequency Range: 47-868MHz
Output Impedance: 750Hm
Output Level: 80-95dBuV
Input Level: 0.77Vp-p for 80%+/-10% modulation
Sound System: M=4.5MHz,B/G=5.5MHz,I=6.0MHz,D/K=6.5MHz
A/V connector: RCA Female
RF Input: F Female
RF Output: F Female
Operating Temperature: -10℃ ~+60℃ / 14℉~140℉
Item Size: Approx. 15.5 * 8.6 * 5cm / 6.1 * 3.4 * 2in 
Item Weight: Approx. 356g / 12.6oz
Package Size: Approx. 16.5 * 10.8 * 5.5cm / 6.5 * 4.3 * 2.2in 
Package Weight: Approx. 415g / 14.6oz
 
Package Included:

1 x Modulator
1 x User Manual(English)

Monday, August 6, 2018

Boya BY-WM8 Dual Channel UHF Wireless Lavalier 2 Transmitters 1 Receiver Microphone System

Boya BY-WM8 Dual Channel UHF Wireless Lavalier 2 Transmitters 1 Receiver Microphone System


Features:
 
The BOYA BY-WM8 Dual-Channel UHF wireless system is a portable, camera-mountable wireless system for capturing audio with dual subjects. It can be used in several environments for video, field recording, interview, broadcast TV, and ENG applications.
It features an easy to read LCD display, a wide switching RF bandwidth, a Mic/Line switchable input, and digital circuitry, rugged lightweight plastic housing.
The BY-WM8 system consists of two bodypack transmitters, a camera-mount receiver, and two omnidirectional lavalier microphones. Also included with this system is a shoe-mount adapter, a single 1/8 inch to XLR output cable, a single 1/8 to 1/8 inch output cable, carrying case.
The receiver is built with mic and headphone output jacks. The bodypack transmitter includes a MIC jack and LINE IN jack.
UHF transmission with 48 channels
Dual-Channel
User-friendly menu operation
Muting function
Locked-plug avoids accidental changing of settings
Operates on 2 standard AA batteries for both transmitters and receiver
Wide range of accessories adapts the system to most of requirements
Both transmitter and receiver feature a comprehensive LED display providing channel, battery life, volume, operating mode.

Specifications:


System:
 
 Oscillator type: PLL Synthesized Control Oscillator
 Carrier Frequency Range:
 576.4 MHz-599.9 MHz (Transmitter A)
 568.6 MHz-592.1 MHz (Transmitter B)
 Channels: 60Hz-15 KHz+/-3 dB
 Carrier Frequency Range: 576.4 MHz-599.9 MHz (Channel group: A )
 568.6 MHz-592.1 MHz (Channel group: B )
 Operation range: 100m (300')(without obstacle)
 
Transmitter:
 
 RF output power: ≤10 mW
 Antenna: Flexible
 Spurious emission: 250 nW or less
 Audio input connector: 3.5mm mini jack
 Audio input level: 600 mV-2000 mV
 Reference deviation: ±7KHz (-60 dBV, 1 KHz input)
 Input frequency range: 20 Hz-20 KHz
 Power supply: Two AA batteries
 Operation time: 6 hours
 Dimensions: 17.7 x 6.7 x 2.9 cm
 Weight: 95g (without batteries)

Package Included:

1 x Receiver
2 x Transmitter
2 x Microphone Clip
1 x 3.5MM Cable
1 x XLR Cable
2 x Wind Screen
1 x Mount
2 x Belt Clip
(no battery included)



Friday, July 13, 2018

2PCS Retevis RT628 Kids Walkie Talkie 22 Channels UHF 462~467MHz Two Way Radio Walkie Talkie

2PCS Retevis RT628 Kids Walkie Talkie 22 Channels UHF 462~467MHz Two Way Radio Walkie Talkie


Specifications:
 
Brand Retevis
Item Kids Walkie Talkie
Model 1#: America Channel
2#: Europe Channel
Color Black, White, Red
Size Approx 160X55X28mm
Weight 90g/piece
Quantity 2PCS

Frequency Range UHF: America Channel: 462.550-467.7125
UHF: Europe Channel 446MHz
Channel America: 22 channels (FRS and GMRS )
Europe:  8 channels(PMR)
Output Power 0.5W
Frequency Stability 2.5 (ppm)
Range Distance 1-3KM
VO X Function Yes
Channel Lock Yes
LCD Display Including,
Battery Status Indicator
Yes
Adjustable Volume Level Yes
Transmitting and Receiving Icons Yes
Channel Number and Scan Status Yes
Monitor Function Yes
Setting the Double Channel Monitor Yes
Scanning Channels Yes
Power Selection (LO/HI) Yes
Push To Talk Timeout Timer Yes
Setting and Transmitting Call Tones Yes
Setting the Sensitivity Level Yes
Setting the SQUELCH Level 1-6 Yes
Battery 3 x “AA” batteries (Not include battery)

Feature:
1. Easy to operate for kids;fashionable design and great toy for kids to enjoy with neighbors
2. This walkie talkie can be used an optional external microphone and earpiece
3. Flashlight and LCD backlit display make things easier when in dark environment
4. 2.5mm charge jack for external charger but charger and battery are not include
5. Many Retevis RT628 walkie talkies will work as long as the walkie talkies on the same channel

Package Including:
2 x Retevis RT628 Walkie Talkies
2 x User's Manual