ITEM NAME:2 in 1 Bluetooth 4.2 Transmitter Receiver Wireless Audio Adapter Support 3. E9D1 2 in 1 Bluetooth 4.2 Transmitter Receiver Wireless Audio Adapter Support 3. E9D1 Support AAC: No Support Apt-x: No High Definition Support: None Content: Audio Model Number: CSR4.2 Support Memory Card: No Sound Track: Single Wireless Type: Bluetooth WIFI Standard: None The product is set to receive and launch, two-in-one Bluetooth device. The product is simple, which is able to launch and receiver freely. Through Bluetooth reception mode you can send the phone music to the traditional home audio equipment. It is more convenient to send TV, CD player, MP3 or other sources to the Bluetooth speaker or Bluetooth headset through the product Bluetooth launch mode. Due to the low latency technology, It also supports sound real-time transmission of online games, television and film. Descriptions: Buit-in rechargeable battery, which has long battery life. It solves the imitations of audio equipment perfectly and extends a variety of audio equipment transfer function Fast connection more stable sound Specifications: Bluetooth Standard: Bluetooth 4.2 Support: A2DP, AVRCP Support: MP3, WAV, WMA,APE,FLAC Transmission distance: more than 20M Power supply: 3.7V Working time: more than 10H Charging time: 2H Input output connection: 3.5mm Stereo earphone holder colour: Black Material: ABS Size: 50x30x8mm Interface: 3.5mm Package Contents: 1 * Bluetooth Audio Transmitter & Receiver 1 * 3.5mm Audio Cable 1 * USB Charging Cable 1 * User Manual (English / Chinese) Only the above package content, other products are not included. Note: Light shooting 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.