1、 Rich, clear bass and crisp human voice highlight its excellent sound quality. 2、 Compatible with Bluetooth 0, can instantly connect to your smartphone and tablet, transmission distance up to 10 meters. 3、 The speaker can play the music you love stored in the TF card and U disk. 4、 Mini size and light weight, easy to carry and enjoy music anytime and anywhere. 5、 Suitable for small gathering, office and single music enjoyment. Features:  1. Rich, clear bass and crisp human voice highlight its excellent sound quality. 2. Compatible with Bluetooth 5.0, can instantly connect to your smartphone and tablet, transmission distance up to 10 meters. 3. The speaker can play the music you love stored in the TF card and U disk. 4. Mini size and light weight, easy to carry and enjoy music anytime and anywhere. 5. Suitable for small gathering, office and single music enjoyment.   Specification: Main Function: Bluetooth, Call, TF card, AUX, USB, FM Bluetooth Version: V 5.0 Transmission Distance: 10m Interface Type: USB Number of Channel: 2 Output Power: 3W Storage: Max. 16GB TF card (NOT included Battery Capacity: 400mAh Play Time: 4H Shell Material: ABS Color: Blue Weight: 280g (approx.)   Package List: 1 * Speaker 1 * Charging Cable