Main Features:  -360° surround stereo sound, with large speakers and subwoofer sound.  -Built-in personalized alarm clock function, you can set multiple alarm clocks.  -Real-time temperature display, built-in temperature sensing device.  -Three levels of brightness adjustment, you can flexibly adjust according to your own habits.  -Bluetooth 5.0, high speed and stability.  -Multiple playback modes, Bluetooth connection playback, card playback, radio playback.  -1400/2800mah large capacity battery, long battery life.  -Power-off memory, no need to readjust.    Specification:  Color: Black/Blue/Orange/White;  Peak Power: 5W;  Bluetooth Device Name: asmB119;  Speaker Full Frequency/Diaphragm: 40mm*1;  Frequency Response: 150Hz-20KHz;  Signal to Noise Ratio: ≥75dB;  Distortion: 2-5%;  Voltage: DC5V;  Input Sensitivity: 600mV;  Output Power: 3W x 1 RMS;  Connection Distance: 10-20m;  Battery Type: Li-ion battery;  Battery Capacity: 2800mAh;  Package Weight: 0.3kg;  Product Size: 14.30 x 4.30 x 6.40 cm;    Package Contents:  1 x Speaker;  1 x Charging Cable;  1 x Manual