Model: ES-A Grinding speed: 2800/3100/3600 times/minute Size: 178*21*18mm Net weight: 54.5±1g Material: nylon (grinding head), ABS (shell), POM (gear)DSPIAE Reciprocating stroke: 2.5±0.1 mm Battery specifications: 280 mAh Maximum load output current: 750 mA Maximum no-load output current: 250 mA Rated power: 2.8 watts Charging time: 20± minutes Grinding head material type: nylon Polishing pen size: 178*21*18mm Reciprocating horizontal deviation value: ±0.1 mm: Left and right swing deviation: ±0.1 mm Input voltage: 5V Output voltage: 3.7V Input current: 1A No-load continuous use time: 100± minutes Shell material type: ABS Body weight: 54.5±1g Precautions: Do not expose the electric sharpener to high temperatures above 40 degrees Celsius. Children under 14 years old are prohibited from using this product to avoid injury. Do not knock or drop this product to avoid damage that may render it unusable. Do not cover the operating electric sharpener with any object to ensure good heat dissipation. When not in use for a long time, it needs to be charged every six months to prevent the lithium battery from over-discharging. Do not apply excessive force to the grinding head during grinding to avoid excessive load on the motor. Electric grinding pens have relatively low power and are used for precision grinding and polishing of small parts, but cannot be used for large parts. Features: Efficient charging The charging time is about 20 minutes, and the indicator light provides real-time feedback on the battery level. Get twice the result with half the effort Sand back and forth quickly and smoothly. Free your hands for easy polishing. gear light effect The lighting effect can be customized for each gear, and the current speed can be seen at a glance. Easy to operate Start with one click and start sharpening. Tools should be simple and easy to use. one-button start Three-speed adjustment, 2800/3100/3600 reciprocating polishing times per minute, simulating a real polishing feel. Nylon grinding head, durable Quick-release design makes replacement faster Reciprocating stroke 2.5±o.1mm Overload protection Equipped with an intelligent overload chip, it will automatically shut down when the pressure is too high. Reduce motor losses and extend product service life. Long lasting battery life The charging time is about 20 minutes, and the indicator light provides real-time feedback on the battery level. The battery life under full power and no load is about 100 minutes. *The reciprocating polishing pen does not support the fast charging protocol, please use a charging head below 5V3A to charge. Cool lighting effects 10 functional prompt lighting effects can be freely allocated. Package Included: ES-A electric sharpener body X1 Power cord X1 Storage box×1