1、The LCD screen can display the loaded condition, charging state and the available time, reminding for oil filling and charging. 2、After fully charged, the hair clipper will automatically start the charging protection function to stop charging, and protect the battery life. 3、You can press the "‑" or "+" speed control switch to set the corresponding number of revolutions. 4、When the hair clipper encounters a lot of hair or thick and hard hair, it will still keep the set number of revolutions at a constant speed to improve the speed and effect of hair cutting. 5、It can be fastly charged in 3 hours and used for 250 minutes with high‑performance and large‑capacity lithium battery without memory effect and a long cycle life. Item Type: Hair Clipper Material: ABS & Stainless Steel Product Plug: US Plug 100-240V Charge Time: 3 Hours Service Time: 250mins Battery Type: Lithium Battery Battery Capacity: 2600mAH Charge Methods: 3. After confirming that the power switch of the hair clipper is in the off position, the hair clipper will emit a "Didi" prompt sound after inserting it into the charging base. 4. The charging reminder icon in the LCD screen is always on, indicating that it is in the charging state. (After fully charged, the hair clipper will automatically start the charging protection function, stop charging, and protect the battery life.) 5. The hair clipper can be directly connected to the charger to charge. 6. When the hair clipper is not powered, it can be directly connected to the charger and operated with a wire. Charge Description: 1. Please charge it for 3 hours for the first time. After 3 to 4 times of full charge and discharge, the battery capacity will reach the best condition. 2. The best ambient temperature for the charger is between 5℃ and 40℃. 3. The product can retain 80% of the original battery capacity after completing 400 charging and discharging cycles. LCD Screen Function: Hair clipper RPM control function 1. Digital display of hair clipper revolutions per minute (RPM) setting range: Setting method of 5000-7000 revolutions per 1 minute: Press the "-" or "+" speed control switch to set the corresponding number of revolutions, and adjust 500 revolutions every time you press it. Intelligent constant speed function 1. The hair clipper always keeps running at a constant speed at the set number of revolutions. The feature of this function is that when the hair clipper encounters a lot of hair or thick and hard hair, the speed will not be reduced by resistance, and it will always keep the set number of revolutions at a constant speed to improve the speed and effect of hair cutting. Loaded condition: 1. When the indicator light is in the first to third grid, it belongs to the normal load range. 2. When the indicator light is in the fourth grid, it is a reminder that the load is too large and 3. the cutter head needs to be filled with oil. 4. When the indicator light is in full display state, the hair clipper will emit a "Didi" alarm sound, indicating a serious overload, and it is necessary to immediately remove the cutter head for cleaning and oiling the cutter head. (If the hair clipper has been cleaned and oiled and the alarm continues, it means that the cutter head is worn out and you need to buy a new cutter head for use.) Oil filling reminder function 1. When the accumulative operating time of the hair clipper reaches 120 minutes, the red oil filling reminder icon flashes, and the “Didi” reminder sound is emitted to remind you to clean and oil the knife head. Charging reminder function 1. When the usable time is only 20 minutes left, the charging reminder icon starts to flash, and then a “Didi” reminder sound is issued to remind you to charge the product. 1 x Hair Clipper 1 x Cleaning Brush 1 x Charging Base 1 x Charger 2 x Guide Comb