[Power Supply Method]: Wired power cord for car cigarette lighter port, 4.5m model, plug in Wireless model - the host contains a 2000mAh * 2 cell battery, a USB charging cable, for charging Charging time for wireless models: 4 hours in summer / 5 hours in winter Battery life of the wireless model: about 20 minutes of continuous use when the machine is turned on Note: When the wireless charging model is not used for a long time, the machine needs to be charged from time to time to prevent the battery from being exhausted and it will be in a protective state and cannot be turned on. [Power Voltage]: Wired model 12V 120W / Wireless model 7.4V 60W. [Product model]: CS-A8 [Host size]: 36.8*6.5*3.5cm [Packing box size]: 38*7.5*9cm (color box) [Product material]: ABS chassis + pure copper brushed motor [Noise]: ≤80dB [Using temperature]: -20℃~+50℃