Simple operation: Just connect your speakers/headphones with our equipment, and immediately turn your speakers/headphones into fashionable wireless Bluetooth speakers/headphones. Wireless playback: Free from the trouble of wired connection. Through wireless connection and transmission, users can enjoy high-fidelity music anywhere in the room through wireless control. Portable design: the size of the mini plus the clip design, the portable feature allows you to take them anywhere you want. Type: Bluetooth audio receiver Model: BT001 Output interface: 3.5mm audio. Bluetooth version: 5.0 Signal to noise ratio: 90dB Frequency response: 20HZ-20KHZ. Color: Black Material: plastic Package Contents: 1 x Bluetooth audio receiver Only the above package content, other products are not included. Note: Light reflection 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin