Overview: 1. Mild hoo-hoo lamp, 3-d surround, Full Bass. 2. Surround sound, High Fidelity Sound Quality, Bluetooth Connection, built-in speaker, Halo effect, 360-degree surround sound, live performance, for Harman's proprietary Stereo wiper DSP technology, six 1.5 inches high if speakers, a 4.5-inch subwoofer providing 360 directional sound. 3. Bluetooth wireless voice calls, Built-in All-pointing High-sensitivity Microphone Support Bluetooth and mobile phone connected voice calls, including noise reduction technology, to deliver clear sound, in the car can also be used as a car phone in a suitable location, so as not to affect driving safety. 4.Bluetooth wireless playback, 10 meters distance connection, no power constraints, free music 5. Sensitive and easy to control at a touch, Sensitive Mechanical Keys 6. Long-lasting, without frequent charging, a charge, continuous use of 3-6 hours depending on the music and volume of the body, although small, full power. BUILT-IN HIGH-QUALITY POLYMER battery, longer charge, and discharge life. Specifications: Type: Bluetooth speaker Connection method: Bluetooth connection Interface type: USB Battery capacity: 800 Frequency response range: 100HZ-20KHZ Output power: 2*5W 1*10W Signal to noise ratio: ≥75dB Power supply mode: built-in lithium battery Channel: 2.1+1 Playing time: 2-3H Expansion Storage: 16GB Bluetooth protocol: 5.0 Number of speakers: 3 Effective distance: 10 meters Function: Insert card, voice prompt, call function Operation mode: button Applicable people: general Display: None Play format: MP3 Package Content: 1 x Wireless Bluetooth Speaker 1 x Charging Cable