Measy AU680 Wireless Audio Speaker Transmission Box Transmitter & Receiver Transmission Distance: 100m

Features1. High-quality transmit with 48k-16bit sampling. 2. Uncompressed transmit. 3. About 100 meters transmit of outdoors. 4. It is easy to use plug and play. 5. AU680 wireless audio transmitter is a transmitter that enables wireless audio for home entertainment. 6. The product consists of the transmitter and the receiver.Specification1. Operating Voltage: Transmitter: DC 3.6V-5.5V; Receiver: DC 3.6V-5.5V 2. Working current: Transmitter: 250mAh; Receiver: 100mAh 3. Ambient temperature: 0-85 degree C (Transmitter and Receiver) 4. The actual operating frequency range of the modual: 749-770MHz (Transmitter and receiver) 5. Modulation: Pi/4DQPSK (Transmitter) 6. Channel spacing: 4MHz (Transmitter and receiver) 7. Frequency selection method: Transmitter: Carrying channel one-way loop selection; Receiver: Provides automatic search and manual conversion of two models 8. Frequency stability: +/-100KHz (Transmitter and receiver) 9. The actual working channel of the modual: 20CH 10. Modu