Bluetooth 5.0 technology Bluetooth 5.0 technology effortlessly connects to all your Bluetooth enabled devices up to a range of 30 feet. Easily connects with mobile phones, computers, Macs and all other Bluetooth devices Speakers are also alarm clocks It is not only a speaker, but also a digital alarm clock, multifunctional and fashionable, not monotonous, custom double alarm clocks, good music wakes the beautiful Double unit, heavy bass 4D 45mm long throw driver + 40mm passive diaphragm, with clear and powerful drum beats, a booming stereo bass listening experience Large drum kit Support for bright screen saver, 1600mAh battery, long battery life, continuous music listening up to 20 hours Three levels of brightness adjustment When connected to USB for charging, the screen can be set to be always bright, 3 levels of brightness can be adjusted freely, when not connected, it will automatically become darkest in 5 minutes to save power high definition mirror display screen The high definition mirror display screen can be used as a mirror for you who love beauty while listening to music, so you can add makeup anytime, anywhere Telescopic mobile phone holder The telescopic mobile phone holder hidden behind the speaker makes it easy to free your hands when watching dramas and entertainment, and you can enjoy stereo sound real-time temperature display Built-in temperature sensor, real-time display of the temperature in the area, makes life more convenient Model: D-88 Material: ABS Bluetooth version: 5.0 Speaker: 4Ω 3W Input power: 5V / 1A Output power: 3W total harmonic distortion = 10%. Battery type: 3.7V 18650 rechargeable lithium battery. Battery capacity: built-in 1400 mAh lithium battery Frequency response: 80Hz-20KHz Signal-to-noise ratio: ≥ 85 dB Distortion: < 0.5 Audio frequency segment reception: 87.5-108 MHz Connection distance: approx. 10 meters (without obstacles) Music playback: approx. 5-7 hours Standby time: approx. 20-40 hours Charge time: approx. 4 hours Card function: supports MP3 format, supports a maximum capacity of 32g (not included). Scope of application: suitable for rooms and offices, etc. Package list: 1 x Bluetooth clock speaker 1 x charging cable 1 x manual Function: mirror, Bluetooth, adjustable brightness, clock display, dual alarm clock, temperature, support memory card playback, collection broadcast, built-in FM radio, can be used as a mobile phone holder, payment code card slot, mobile phone call answering, auxiliary audio input