Bluetooth Wireless 3D Soundbar Speaker Black

Features: Support TF card audio input. Support 3.5mm audio input. Support U disk audio input. Does not support hands-free function. With radio function. Support volume control, music switch, pause and play. Descriptions: Bluetooth version: V4.0 Speaker Number: BS-28A, BS-28: 2; BS-28B: 4 Speaker power: 5W × 4, 3W × 2 Use transmission power: 1.49mW Transmission frequency: 2.48GHz Transmission distance: 8-10 meters Music playback time: about 2.5 hours (for 4 speakers); about 4 hours (for 2 speakers) Charging time: 2-3 hours Standby time: 240 hours Support formats: A2DP, AVRCP, HSP and HF Battery: 18650, 3.7V / 2000mAh SNR: -80db Frequency response: 20HZ-20KHZ Charging voltage: DC 5V / 1A-2A Charging socket: micro 5pin (V8) Specifications: Model: BS-28A, BS-28, BS-28B Material: plastic Color: black Item Size: BS-28A, BS-28: 330*50*50; BS-28B: 550*50*50 Package included: 1 x Bluetooth Wireless Soundbar 1 x USB Charge Cable 1 x Audio Cable Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Due to different personal measuring techniques, there might be 1-3cm error of the physical. Thank you!