Features: brand new and high quality Type C charging wireless receiver has TF card slot, commonly known as an all-in-one musical instrument BT5.1 Instantly connection for wired earphones, and public car normal speakers etc Small compact-and-slim design, lightweight and easy to carry; Product functions: adjust volume, switch songs, answer incoming calls, reject incoming calls, listen to music, display sound, power indicator. TF card instantly released, support various sound formats, bluetooth-compatible model /TF card model switch at any time-; Specifications: Size: approx 66x30x18/2.6x1.18x0.71in Bluetooth-compatible version: BT5.1 Support : HIFI Music Bluetooth-compatible Playback Sistance :within 10Meters/33ft Material: ABS- Connection: Type C 3.5mm Aux TF slots Color: Black Package Includes: 1PC x Audio Receiver 1PC x User Manual note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!