Ultrasonic mobile power supply self timer 4000mAh, exclusive private mold, measurement

Ultrasonic mobile power self timer 4000mAh, exclusive private mold, customized!

1. Battery type: Li ion battery 4000mAh

2. Input: Micro USB 5V

3. Output: USB 5V

4. Take photos by downloading app related software

5. Self timer control range: 1.5m

6. Self timer working current: 20mah ± 5mah

7. Self timer standby current: 40 μ a

8. Ultrasonic working frequency: 15.82khz

9. Ultrasonic working voltage: 10-12v

10. Product features: self shooting function, supporting the replacement of front and rear cameras; with mobile power supply function of 4000mAh, with headlamp and flashlight function.