Specifications:

Battery:Built in Rechargeable Battery

Material:Aluminum alloy + ABS plastic

Switch:Head press switch

Zoom mode:None

Charging mode:USB interface

Features:With SOS help whistle and charged display function

Color: Black

Dimming mode:7 modes

3* LED

5* LED

7* LED

9* LED

11* LED

2* LED in Red

2* LED in Strobe

Size: Approx. 7.6x2.1cm/2.75"x0.82"

Voltage: 3.7V

Capacity: 4200mAh(high capacity)

Weight:180g

Package included:

1x LED Headlamp

1x USB cable