Parameter: Battery: Built-in lithium battery Charging time: 1A2 hours Accessories: work light + micro usb data cable (60cm) Working temperature: -25--52 Other functions: hook, with two strong magnetic adsorption, USB output 1A Features: One-button Bluetooth: Long press the side Bluetooth switch, the blue indicator light will light up, turn on the blue search on the phone to connect to WK05, and play the music on the phone. The combination of work light and bluetooth sound can enjoy the bath of music while working. Multi-lamp design: MICRO USB charging port, multiple strong light wicks (COB front + XPG top) strong brightness, equipped with LED lamp beads, high brightness, pure color rendering, long life, stable light source output. Strong magnetic adsorption: strong magnetic design on the back, with a magnetic block on the back, strong magnetic force, can be easily adsorbed on the steel surface, such as: computer mainframe, refrigerator, car, bicycle lights. Smart charging: Adopting a diversified USB charging system, unified interface, multiple modes of charging, high-current fast charging, convenient, safe and practical. It can be connected to a laptop, a car, a power bank, and an adapter to charge. The large capacity can charge the mobile phone many times. Multi-level switching: XPG switch: strong light-weak light, COB switch: white strong light-white weak light, red strong light, red light flashing Convenient hook design: It can be easily hung on branches, poles, etc., and can be hooked with fingers. The base can be adjusted at 270°, and the irradiation angle can be adjusted at will. The four-segment power display function monitors the power status in real time and recharges it in time.