Product: ROJECO N30 Electric Dog Nail Grinder with 2 Led Lights
Note:  It is better to use 5V/1A USB Adapter to charge the pet nail grinder.
Effective 2-Speed: Low Speed-7000RPM / High Speed-8000RPM
Safer 2 LED Lights Design / Super Low Noise & Vibration / Rechargeable & Easy to Use
USB adapter Input: AC100V-240V  50/60Hz
USB adapter Output:  DC5V
Ultra-Quiet Noise (Low speed; 40dB / High speed; 50dB)
Battery Type: NI-MH 3.6v (600mA)
Charge Time: about 3 hours
Using Time: about 3 hours
Size:200x102x43mm
Weight: 283g