This kind of portable and illuminated neck hanging mini fan L-ED light is your e-xcellent choice for coming summer. Not only providing you cool enjoyment but also offering you gorgeous visual effect. What are you waiting for? Just buy and enjoy. Specifications: Item type: Neck Lamp Rated voltage: D C 3.7 V P-ower: 0.3-1.2 W (Based on different working modes) Input current: 0.5-1 A Batter-y p-ower: 1 * 3.7 V 1500mAh rechargeable batter-y 2 * 3.7 V 1500mAh rechargeable batter-y (Optional) Color: White / P-ink / Black (Optional) Material: ABS 3 Levels adjustable speed: Soft wind/ Cool breeze/ Strong wind C-harging hours: 3 hours Working hours: 3 hours (1 * 3.7 V 1500mAh rechargeable batter-y) 7 hours (2 * 3.7 V 1500mAh rechargeable batter-y) Light color: Muliti-color Item weight: 222g (1 * 3.7 V 1500mAh rechargeable batter-y) / 260g (2 * 3.7 V 1500mAh rechargeable batter-y) Package size: 206 * 198 * 57mm/ 8.1 * 7.8 * 2.2inches (Length * Width * Height) Package weight: 313g (1 * 3.7 V 1500mAh rechargeable batter-y) / 351g (2 * 3.7 V 1500mAh rechargeable batter-y) Package list: 1 * Neck Lamp 1 * USB cable 1 * Instruction