Feature:ThreebrightnessThree-step brightness adjustment, you can flexibly adjust the display brightness according to your own habits, and accompany you to sleep peacefully.Custom dual alarm clockThe desktop displays the time, you can use it to determine the time, the built-in personalized alarm clock function, you can set multiple dual alarms.360 degree surroundWith strong magnetic speakers, powerful stereo bass, 360-degree surround, clear and powerful drums, and good sound.Various playback modesYou can play via Bluetooth connection, card playback, radio playback, can meet your needs.High capacityWith two large-capacity rechargeable batteries (included), the maximum standby time is about 200 hours, which is energy-saving. Specifications:Item type: Alarm clockMaterial: Plastic + electronic componentsColor: BlackProduct model: B119Peak power: 5WConnection method: Bluetooth connectionInterface: USBFrequency response range: 150HZ-20KHZOutput power: 3WSignal to noise ratio: More than 75DBBattery capacity: 1200mAhPower supply: Built-in 2*1200mAh lithium batteryChannel: 2.1Playing time: 48hExtended storage: Not supportedBluetooth protocol: 5.0Number of speakers: 1Effective distance: 10 meters/393inchOperation mode: ButtonPlay format: MP3Speaker adjustment method: ButtonRadio function: YesInput voltage: 5VInput current: 1ABluetooth device name: ASMB119Speaker full frequency/diaphragm specification: 40mm/1.57inch*1 full frequencyCharging power supply: DC5VVoltage: 3.7VOutput power: 3W*1 RMSDistortion: 2-5percentInput sensitivity: 600MVConnection distance: 10-20 meters/393-786inch (without obstacles)Item size: 14.3*3.3*4.6cm/5.5*1.3*1.81inch(L*W*H)Weight: 240g/8.47oz360 degree surround: With strong magnetic speakers, powerful stereo bass, 360-degree surround, clear and powerful drums, and good sound.Custom dual alarm clock: The desktop displays the time, you can use it to determine the time, the built-in personalized alarm clock function, you can set multiple dual alarms.Various playback modes: You can play via Bluetooth connection, card playback, radio playback, can meet your needs.High capacity: With two large-capacity rechargeable batteries (included), the maximum standby time is about 200 hours, which is energy-saving.Three brightness: Three-step brightness adjustment, you can flexibly adjust the display brightness according to your own habits, and accompany you to sleep peacefully.