Huawei Color Cube Stereo Bluetooth Speaker ,Minimalist Id Design, Color Cube, Stunning Sound Effects, Multiple Connectivity Options, Allowing You to Enjoy Anytime, Anywhere Hifi Level Stereo Bluetooth Speakers Bring a New Revolution! (Lemon) Specifications Features an intelligent voice prompts: Bluetooth pairing, connecting and low battery indication; 2, easy to use: connect a Bluetooth device automatically return last used; 3, speakerphone: DSP noise reduction HD microphone, release your hands, a key answering; 4, shocking sound: full-range dual speakers, open-cavity structure, high-quality stereo sound; 5, support battery power display: can display 100%, 75%, 50%, 25% of battery power; 6 support multiple connection modes: support microSD card, AUX cable, Bluetooth, three connection modes Battery capacity 1200mAh Rated power 4W Output voltage / current 4.75V-5.25V / 1A Bluetooth Bluetooth V3.0 Button 8 mechanical buttons: volume +; volume -; on one; under one; Bluetooth pairing button (Composite answer / end / play / pause); view electricity; mode: switch key Transmission range of about 10m Micro USB charging port Theory charging time &lt;4.5 H 5 hours of continuous playback time (75% volume) 80dB maximum volume Indicator 1 red LED (external audio playback mode); 2 blue touch indicator (Bluetooth pairing); 3 white power indicator (flashes during charging, 4-bit full brightness is full);. 4 White indicator (microSD card mode) Speaker number two Microphone 1 Performance Frequency response 75Hz-15KHz SNR 60dB Properties Size 165mm * 66.6mm * 46mm Weight 380g