Product name: Steel head scalerProduct model: 104139Material: 304 stainless steelBattery capacity: 250 mAWaterproof: IPX6Storage temperature: -1040Host size: 19.5*2.6*2.4 (excluding cleaning head)Packing size: 21*9*2.5cmNet weight/Gross weight: 118/169.2gPacking specification: 59*46*25, 100 pieces, 17.8 kgPacking list: host + needle cleaning head + hook cleaning head + flat cleaning head + mouth mirror + tweezers + DC charging cable + manual + color boxSimple to use, safe and efficient.Good hand feel, low working noise, detachable cleaning head, direct washing is more convenient.Versatility: 3 cleaning heads, 3 modes, to solve various problems. Reliability: stainless steel suction head, waterproof body, safe and intimate: LED auxiliary lighting, accurate positioning of tartar and teeth.Environmental protection: 250mAh built-in rechargeable battery, long-lasting battery life. Easy to use: intuitive two-button layout, effectively preventing misoperation.how to use:1. Select and install a suitable cleaning head.2. Clean the tip with water or alcohol.3. Press the power button to turn on, the LED will automatically light up.4. Press the mode button to select the mode.5. Look in the mirror, press the tip against the exposed area of the tooth, and begin to remove tartar or stains.6. After use, turn off the power button and rinse your mouth with water.7. Rinse the cleaning head with water.