Smart sensor, manual waveform detection Press and hold for 3 seconds to turn on the device, press and hold for 3 seconds to switch to the waveform detection function, the indicator light will turn red and green at the same time to enter the detection mode Wave sensor switch, 300 lumens in light, 150 lumens in low light Up and down 45° adjustable, the angle is too high, it is easy to ignore nearby obstacles at night Adjustable angle, wider lighting angle, easy to detect more obstacles at night USB charging, built-in rechargeable polymer lithium battery, battery capacity 1200 mAh The headband is easily adjustable and the head is elastic. The strap is soft, non-slip and comfortable, and is very light, only 73g, comfortable to wear Material: ABS + PC Weight: 73g Size: 5.5 * 3.5 * 2.5cm Charging time: 3-5 hours < li>Wick: XP-2 Power supply: USB charging Built-in polymer lithium object battery Battery capacity: 3.7V / 1200mAh Waterproof: IPX5 Mode: high white light / low white light / red