Features： 1、Multiple interfaces and powerful functions, which allowing wired devices to become device with BT function in seconds. 2、BT 5.0 version, quickly pairing, with high transmission speed and a wide signal ranges. 3、With AUX audio jack and RCA jack, it can be connected to non-BT car audio systems, home stereo, wired headphone/speaker, amplifier, home theater and etc.. Specification： This audio receiver adopts BT 5.0 version, quickly pairing, with high transmission speed and a wide signal ranges. Multiple interfaces and powerful functions, which allowing wired devices to become device with BT function in seconds. With AUX audio jack and RCA jack, it can be connected to non-BT car audio systems, home stereo, wired headphone, speaker, amplifier, home theater and etc.. Lossless sound quality, no delay in listening to songs, quality BT decoding chip, lossless transmission, high sound quality. Features: Multiple interfaces and powerful functions, which allowing wired devices to become device with BT function in seconds. BT 5.0 version, quickly pairing, with high transmission speed and a wide signal ranges.  With AUX audio jack and RCA jack, it can be connected to non-BT car audio systems, home stereo, wired headphone/speaker, amplifier, home theater and etc.. Support volumes control, long time left rotation volumes up; long right rotation volumes down. Supprt select music, rotate left for a short time for the previous song; rotate right for a short time for the next-song. Play/Pause function, Short press the encoder to plays or pause the music. Support memory card function(memory card is not included), drive free design, plug to use, no delay in transmission. Equipped with blue power indicator light, you can see the working states in time. Lossless sound quality, no delay in listening to songs, quality BT decoding chip, lossless transmission, high sound quality. Strong signal, 10 meters stable transmission distance, built-in signal gain amplifier, room connection without dead-angle. Scratch-resistant base with soft silicone pad design to prevents falling, anti-slip and stable placement. Specifications: Name: BT Audio Receiver BT solution: 5.0 EDR, A2DP, HSP, AVRCP Frequency: 2.4GHz-2.48GHz BT receiving distance: ≤ 10meters Recharging voltage: DC5V Item size: 70 * 70 * 34.5mm / 2.76 * 2.76 * 1.36in Package size: 90 * 90 * 52mm / 3.54 * 3.54 * 2.05in Package weight: 85g / 3.00ounce Packing List: 1 * BT Audio Receiver 1 * AUX Cable 1 * RCA Cable 1 * Type-C Cable 1 * User Manual Package List： 1 * BT Audio Receiver 1 * AUX Cable 1 * RCA Cable 1 * Type-C Cable 1 * User Manual