Material: ABS+ Electronic Components+Silicone Battery Specifications:18650 Li-ion 1200mAh - 3.7V Input Voltage: 5V Input Current:0.5-1A Power: 3W Speed Regulation: Low-High Battery Charging Time: about 3-4 hours Working Time: Gear1 can use 3 hours, Gear2 can last 2 hours Size: 106*210*112mm Wight: 123g The sturdy fan produces a soft breeze to keep you cool and relaxed . Ultra-quiet design. Using brushless motor technique, lower power and longer life. 7 blades ensure the adequate wind. Powered by 1200mAh 18650 lithium rechargeable battery, large capacity, strong versatility, can be circular charged, low cost of use, convenient to carry anywhere and anytime. Equip with hand rope, same color with fan's handle, don't need to grasp in the hand all the time, lightweight, can hang on the wrist or on the bag, backpack, release your hands. 2 Speeds adjustable: speed 1 can be used for 3 hours, speed 2 can be used for 2 hours. Charging time: about 3-4hours. Brushless motor fan, strong wind, perfect cool mini handheld fan for indoor - the office, home, dorm, study, library, games room or outdoor activities - beach, picnic, sporting events, camping, hiking, cycling, backpacking, biking, climbing, boating, travel and more. Brand No Brand SKU 100590173_NP-1020978760