1Manual Mode and Induction Mode: With multi function switch， the headlamp is easy to start. Press the smart inductive switch to turn on the induction mode. You can also press the power switch to switch the manual mode. 2High Sensitivity: Using high quality infrared sensor device， the sensor is sensitive. You can control the light switch by waving your hand. 3Dua Use: 2 in 1 LED headlamp， it is a headlamp and a cycling light， which can be quickly disassembled. It can be used as a headlamp with a headlamp band and can also be used as a cycling light with a bracket. 4Magnetic Design on the Back: There is a magnetic block on the back， which can be easily adsorbed on the steel surface， such as computer mainframe， refrigerator， automobile and other objects. Strong adsorption， not easy to fall off. 5Wide Range of Application: Mini and portable， life grade waterproof， the head flashlight is no fear of wind and rain， suitable for adventure， night running， camping， maintenance， hiking， etc. Lightweight smart headlamp free your hands.Item Type: LED HeadlampMaterial: Aluminum Alloy + PSProduct Color: BlackProduct Width: Approx. 8.5cm / 3.3inProduct Height: Approx. 7.3cm / 2.9inProduct Thickness: Approx. 4.5cm / 1.8inProduct Weight: Approx. 316g / 11.1ozVoltage: 5VBattery: 2 x 18650 lithium batteries with a capacity of 4000mAh (built in)Function: 1. Long press for 2 seconds to switch to the main light induction mode.2. There is a strong magnet and hook on the back to fix the product.3. It can also be used as a riding light with a bike clip.4. With battery power display1 x LED Headlamp1 xHeadlampStrap1 x USB Cable1 x Bike Clip