Included Accessories: 1. Bluetooth Music Receiver Host 1 set 2. USB Charging Cable 1 piece 3. 3.5mm Audio Adapter Cable x 1 4. 1 x 3.5mm metal adapter Features: Bluetooth transmission distance 5m Supports Bluetooth hands-free calling function Supports Bluetooth A2DP stereo Supports call functions such as answering, hanging up, rejecting and redialing Supports echo cancellation and noise suppression (CVC) technology during calls Lithium battery specification: 200mA/h 602025 Charging time: about 2.5 hours Working time: about 8-10 hours Connecting to two devices: After successfully connecting to the first device, turn off Bluetooth, then connect to the second device. Once the second device is successfully connected, turn on the first Bluetooth device. Enjoy wireless music streaming: This Bluetooth receiver adds Bluetooth functionality to a variety of non-Bluetooth devices via a 3.5mm AUX cable, such as non-Bluetooth car audio systems, stereos, speakers, and wired headphones. Bluetooth