[Transmitter Receiver 3 IN 1] Bluetooth adapter combines transmitter and receiver in one with a 3.5mm aux jack. With the latest Bluetooth V5.0 chip, Bluetooth connection is more stable and wireless range is more than 33 feet. Updated Bluetooth 5.0 ensures stronger signal transmission and less crackling, hissing or sound deterioration. Easy to pair and compatible with 99.9% Bluetooth devices. [Bluetooth Everywhere] The Bluetooth audio adapter transmit stereo audio wirelessly from your non-Bluetooth audio sources such as TV, MP3, CD player, PC or eBook reader to your Bluetooth-enabled headphones, speaker. or makes your home stereo Bluetooth enabled to receive the wireless music streaming from your phone and tablet. [Always On/Long Battery Life] The Bluetooth transceiver continuously streams even while charging. Built-in 300mAh battery serves you about 10 hours after 1 hours of full charge. Enjoy your favorite wireless content all the time. [Easy Operation] There are Multi-functional buttons on the Bluetooth adapter, you could pause/, skip next/last track, increase/decrease volume just by operating the adapter, very convenient. (Only applied for Receiver Mode/Mono only) Bluetooth version: Bluetooth V5.0+ Bluetooth profiles: AVRCP(receiver mode only), A2DP Input parameter: 5V 1A Charging port: Micro-USB Charging time: 1 hour Receiver mode play time: 10 hours Transmitter mode play time: 7 hours Working distance: 33-50FT Colour: black Material: ABS Size: 7.7 x 2.7 x 1 cm Package Contents: 1 * Bluetooth Transmitter Receiver 1 * 3.5mm Audio Cable 1 * USB charging cable Only 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.