1. Bluetooth solution: version 4.2 2. Wind/temperature display: support 3. Speaker impedance: 2x5 watts 4 ohms 4. Frequency response: 75Hz-20KHz 5. Battery: 3.7V 4000mAh 6. Charging input: DC 5V 1.0-2.0A 7. Bluetooth transmission distance: greater than or equal to 10M 8. Alarm clock: support dual alarm clocks 9. Fan motor: silent brushless motor 10. TF card: support 32GB(max) 11. Adjustment method: button 12. Clock: 24-hour system 13. Audio input mode: AUX USB TF card, wireless bluetooth
