Bluetooth Speaker Bluetooth 5.0 Heavy Bass Stereo Surround Sound Mini Portable Speaker Large Capacity Lithium Battery Built-in Noise Reduction Microphone Features: Product name: Bluetooth speaker Material: ABS Product color: Black Gross weight: 270g/0.595lbs Packing size: 15*9*7cm/5.91*3.54*2.76in Bluetooth protocol: 5.0 Frequency response range: 100HZ-20KHZ Power Output: 5W Interface type: USB Connection type: Bluetooth, U disk, AUX, T-flash card Battery capacity: 2000mAh Waterproofing grade: IPX2 Other functions: FM radio, Microphone Product Description: Three sound unit pronunciation structure, the sound quality is better than expected. Built-in a tweeter and two bass diaphragm, using a three-way pronunciation structure, three-dimensional surround sound. The treble is transparent, the middle clear, the bass thick. 52mm large size loudspeaker unit, high notes don't break, bass is thick, enjoy the surging sound. Transparent HiFi sound quality, full timbre, fantastic, like a concert scene. Built-in 2000mAh large-capacity lithium battery, long battery life, fully charged can play 20 hours of music. Intelligent charge management, you can use the audio while charging. Multi-functional design, the bottom of the speaker adopts the design of a pull type bracket, which can be used as a mobile phone bracket when needed, convenient and practical. Portable stereo, with lanyard, easy to carry at any time. Go out, enjoy the music. Hd speakerphone call, free hands, clear without stalling. Built-in HD noise-cancelling microphone, clear calls, just like face-to-face communication. Supports Bluetooth, audio cable, U disk, T-flash card and other connection modes. Package Include: 1 * Bluetooth speaker 1 * USB charging line 1 * Specification