Best of both Worlds! A USB rechargeable light combo. 800 lumen LED front light with built-in Bluetooth? controls an 80 lumen LED rear light.

Front: 3.7V 3500mAh Lithium Ion (integrated)
Rear: 3.7V 1000mAh Lithium Ion (integrated)

Front: 5 Modes: High - 800 lm (3.5 hr) / Middle - 400 lm (5 hr) / Low - 200 lm (9 hr) / Blink - 200 lm (20 hr) / Pulse - 400 lm (40 hr)

Rear: 3 Modes: High - 80 lm (3.5 hr) / Middle - 40 lm (5 hr) / Low - 20 lm (7.5 hr) / Blink - 30 lm (20 hr) / Pulse - 50 lm (40 hr)

Front: 10.5 x 3.5 x 3.1 cm / 4.1” x 1.4” x 1.2”
Rear: 8.1 x 3.9 x 3.3 cm / 3.2” x 1.5” x 1.3”

Front: 125 g / 4.4 oz (Light only)
Rear: 51 g / 1.80 oz (Light only)