4 FOUR 2-IN-1 Bluetooth Transmitter & Receiver

Bluetooth transmitter (TX) & receiver (RX) audio adapter. This device combines the function of wireless transmitter and receiver in one for audio streaming. In the Transmitting (TX) Mode, It streams audio wirelessly from the non-bluetooth devices to your Bluetooth headphone or speakers. In the Receiving (RX) Mode, it streams audio to your wired speaker, headphone, car stereo or home stereo system wirelessly, from your Bluetooth-enabled media player. If you want to have a better experience,please read this instruction carefully. Features: 1. Advanced Bluetooth Technology 5.1 with Transmitter and Receiver. 2. Broadcast Audio Output from Your TV, CD player, or Old PC to Wireless Headphones, Speakers and Even Car Stereo System. 3. Low Latency and instant sound transmission, enables user to enjoy high-quality audio and HD picture synchronously. 4. Supreme Audio Connectivity and Quality with improved connection stability, faster pairing, and reduced power consumption for connected devices. 5. Switch operation and audio connection modes with the simple flick of a switch. 6. Effortlessly enjoying up to 10 hours of use on the larger internal battery and rapid recharging within 1.5 hours, ready for many more. 7. Suitable for In-car Usage as a Hands-free Car Kit. 8. Built-in Rechargeable Battery 250mAh, Standby time about 3 month.