Measy AV680 Wireless Audio Speaker Transmitter Receiver 100m Range for TV

Measy AV680 Wireless Audio Speaker Transmitter Receiver 100m Range for TV Digital Audio
Specification:
Transmitter:
Working Voltage: 3.6-5.5V DC
Working current: Max 250mA
Ambient temperature: 0-85℃
Module actual operating frequency range: 749-770MHz
Modulation: PI/4DQPSK
Channel spacing: 4MHz
Frequency Selection: Provide Channel One-way Cyclic Selection
Frequency stability: +/-100KHz
Module Actual Working Channel: 20CH
Modular Channel Spacing: 1MHz
Transmit and receive distance: 100 meters (test using transmission power of 100 mv)
Transmission power: 1-100 MV (default is 100 mv)
Input level: Max 1.0 Vpk
Input impedance: 10K Ohm
Input Interface: Three Input Modes: 1. Stereo Audio Input, 2. Ordinary Microphone Input, 3. Monitor Pickup Input
Output-input gain ratio: 1:01
Frequency response range: 20-20000Hz
Delay time: 2.5ms
Sampling rate: 48KHz 32bit
SNR: 96 dB
Distortion: 0.3v 1KHz
Dynamic range: 90dB
Left and right vocal septum height: 85dB

Receiver:
Working Voltage: 3.6-5.5V DC
Working current: Max 100mA
Ambient temperature: 0-85℃
Module actual operating frequency range: 749-770MHz
Channel spacing: 4MHz
Frequency Selection: Providing Autonomous Tracking Search
Frequency stability: +/- 100KHz
Module Actual Working Channel: 20CH
Modular Channel Spacing: 1MHz
Transmit and receive distance: 100 meters (test using transmission power of 100 mv)
Transmission power: 1-100 MV (default is 100 mv)
Receiving sensitivity: -95dBm
Stereo output level 1:30 mW RL=32ohm
Stereo output level 2:50 mW RL=32ohm
Output positive reactance: 1K ohm
Output-input gain ratio: 1:01
Frequency response range: 20-20000Hz
Delay time: 2.5ms
Sampling rate: 48KHz 32bit
SNR: 96 dB
Distortion: 0.3v 1KHz
Dynamic range: 90dB
Left and right vocal septum height: 85dB
Packaging size: 210mm*117mm*60mm/8.26*4.6*2.36\'\'
Packing weight: 450g

Note:
Please allow 1-3mm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.

Package Content:

1 x Transmitter
1 x Receiver
2 x USB Cables
1 x User Manual