Feature: 1. Anti Slip And Anti Scratch: The bottom of the use of silicone anti slip, to prevent the surging bass vibration generated secondary noise, suitable for a variety of environments. 2. Independent Color Light Knob: Innovative independent volume knob design, adjust the volume more convenient. 3. Subwoofer: The use of bass large diaphragm speakers, the combination of the two to create a three dimensional shock bass. 4. A Variety Of Playback Modes: Easy to connect, not only Bluetooth connection, but also Memory Card playback. 5. Alarm Clock Function: LED display, clear and bright, built in humanized alarm clock function, you can set two alarm clocks. Specification: Item Type: Bluetooth Speaker Alarm Clock Material: ABS, Plastic Battery Type: Lithium Battery (Shipped With Built in Battery) Battery Model: 18650 Battery Capacity: 1200mah Extended Storage: 32gb (Without Memory Card) Bluetooth Version: 5.0 Distortion: <2% Speaker: 4Ω3W Product Size: Approx.6 x 14.3cm / 2.4 x 5.6in Function: 1. Bluetooth limited maximum distance of 15 meters 2. Working time 12 hours 3. Peak power: 5W 4. charging input: 5V-2A 5. Bluetooth device name: B126 6. Speaker: 2.0 inch strong magnetic full range 7. Output power: 3Wx1 RMS 8. Frequency response: 150Hz-20KHz 9. Signal to noise ratio: ≥ 85dB 10. Two sets of alarm clock settings 11. Memory Card, Bluetooth connection, night light 12. Three brightness adjustment 13. Receiving voice announcement. Package List: 1 x Bluetooth Speaker1 x User Manual 1 x Usb Cable