[Safe & Efficient]: Nail laser treatment device combined with 470nm blue laser and 910nm laser live treatment, safe and reliable, 7 minutes at a time, your nails will be healthier and more beautiful. [Compact & ]: The device is fairly compact, made of a nice hard plastic material. and small enough to carry around. It is perfect travel size. [Ease of charging]: That is very easy to operate charging. Just plug the device into a usb port with the provided cable to charge.The battery life is very long.However, it is still recommended to charge once every 3 days. [How to use]: When ready to use, simply open the device and clamp onto your finger/toe. When the lights automatically go out the 7-minute treatment is done, and you can take down the nail laser device. [Service cycle]: The growth cycle of nails is 12 to 18 months, reat your nail twice a day for 7 minutes. Please on using it continuously when you want it to have a significant effect, the short-term effect may not be obvious. Note:The infrared light emits light, which does not cause damage to the product bulb. Describe: Charging method:Type-C interface Charging time:90-120 minutes The red light turns on when charging, and the blue light turns on when fully . The product can be recycled 2000 times Light source:3 460NM blue light + 1 910NM infrared light Product standby time:3 months Product working time:automatic shutdown in 7 minutes Product usage time:6 cycles (every 7 minutes) Usage: 1. Clean and soak nails 2. Trim nails 3. After opening the phone, clamp your nails 4. Open and take out after seven minutes Notes:Due to different production batches, there are slight differences between the actual product and the picture, which will not affect normal use. Colour:White Material:Plastic Package Contents: 1 x Care equipment for manicure Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.