1. High quality 2-in-1 Bluetooth 4.2 Audio Transmitter Receiver.2. Easy to operate, free to send and receive all audio signals.3. Bluetooth receiving mode, transmit the music in mobile phone to traditional home audio equipment.4. Though Bluetooth transmission mode, send audio sources like TV, CD player, MP3 to Bluetooth speakers or Bluetooth headsets.5. Adopt low-latency technology, support real-time transmission of online games, TV, and movie sound.6. Built-in rechargeable battery and long-endurance.7. Resolve the limitations of audio devices and extend the transfer function of them.Item Type: Bluetooth Car KitSpecial Features: Bluetooth Receiver TransmitterItem Weight: 55gModel Name: Adapter for Car Home Stereo SystemFunction: 2-in-1 Transmitter ReceiverBluetooth Version: V4.2Bluetooth protocol support: A2DP and AVRCPSuppot Multi-format decoding:MP3,MAV,WMA,APE,FLACTransmission Distance: more than the 20M (open place)Charge inpute Voltage: DC 5VPower Supply: 3.7VPower Consumption: Playing: less than 20mA; Connected Standby: 0.6-4.5mA; Shut down in 2 microampsWorking Time:more than the more than the 8hCharging Time: 2hSignal Noise Ratio:more than the 95dBColor: BlackFrequency: 2.4 GHz-2.48GHzInterface Type: 3.5mmData Transfer Rate: 150kb/sAudio Encryption: Audio Output: 16bit stereo DACTransmission Power: +/-2dbmSupport Multi-format Decoding: MP3, WAV, WMA, APE, FLACSensitivity: Receiver with -85dbm sensitivityDistortion & Low Noise: (-70DB+90DB)RF Out Resistance: 50 ohmsBluetooth Connect Time: 5-7scolour:blackMaterial: ABSsize:2*2*4cmPackage Contents:1* Bluetooth Adapter1* Audio CableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.