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