XPREEN XPRE052 Wireless Rechargeable Light Acne Treatment Device Home Acne Clearing Eraser with Blue Light and Red Light(White) 1. 24 pcs blue light beads & 12 pcs red light beads, totally 36 light beads work together to make stronger light energy for better acne treating and skin rejuvenating results. 2. Advanced light therapy tech was used to eliminate acne bacillus, balance oil secretion, enhance cell vitality and increase skin elasticity. No irritation for most skin types. 3. 40 minutes automatic shutdown avoids excessive use. Remind to change treating area every 5 minutes. Automatic contact sensor reduces irritation to eyes during use. 4. Built-in rechargeable battery allows cordless and free use. When in low battery, just put the light treatment device on the wireless charging base to start charging immediately. 5. 70 Degrees light therapy head makes larger therapy area and contours your face better. Conforming to ergonomics, the acne remover won't cause any discomfort when being held for a long time.