1. The full-screen range of 10W speakers, sound unit, matching b and surround reverb, allows you to listen to music on site. 2. Wiress BT transmission, using 5.0 upgrade chip, stable and fast transmission, effective distance of 10 meters, high fidity sound , and restore music scenes. 3. Built-in 2000mAh high-capacity battery, fast charging, long range, can be used continuously for about 8 hours. 4. Support BT connection playback, and four playback modes including TF card playback, USB, and AUX-IN. 5. Built-in high-definition call microphone, intligent noise reduction and no noise, support hands- call. 6. It can be adapted to a variety of terminal equipment, desktop computers, laptops, mobile phones can be used, and can also be used as a TV stereo. (Must be connected via Bluetooth to use) 7. Bluetooth stereo with TWS function: two speakers combine songs into more audio arraysSpecifications: 1. Bluetooth version: BT 5. 02. External interface: Micro USB; 3. Battery capacity: 2000 mah 4. TF support: MP3, WAV 5. Output power: 10W 6. Charging voltage: 5V 7. Signal-to-noise ratio: 85db 8. Material: ABS+Aluminum alloy 9. Product size: 18x9.8x9.7cm10.Packing list:Bluetooth speaker x150cm audio cable x150cm charging cable x1Manual x1