Feature: 1. The battery capacity is 1400mAh, which can last for about 8 hours, with a long battery life and worry-free work. 2. Not easy to fall off, safer to use. 3. Weighs only 66g, light and compact. 4. Wireless power bank, easy to carry. 5. Easy to operate, connect with motor machine. Specification: The wireless power has long battery life, easy to connect with motor machine for worry-free work. Features: The battery capacity is 1400mAh, which can last for about 8 hours, with a long battery life and worry-free work. Not easy to fall off, safer to use. Weighs only 66g, light and compact. Wireless power bank, easy to carry. Easy to operate, connect with motor machine. Specifications: Material: Plastic Color: Black Interface: DC, RCA (optional) Input Voltage: DC5V Ouput Voltage: 4.2-12V Charging Time: 4h Working Time: Normal use 4-8h Battery: Lithium battery, 1400mAh (included) Item Size: 84 * 32mm / 3.31 * 1.26in Package Weight: 162g / 5.71ounces Package Size: 115 * 115 * 45mm / 4.53 * 4.53 * 1.77in Note: Do not use charger higher than 5V. Packing List: 1 * Wireless Power 1 * Power Cable Package List: 1 * Wireless Power 1 * Power Cable