Cordless Hair Straightener Brush Portable Negative Ion Hot Comb Long Battery Life with USB Rechargeable Feature Fast Heating

F529, Full body silicone, TYPE-C charging, waterproof dual protection for charging port 1. Battery (1) Capacity: 500mAh (2) Material: Polymer Lithium ion Battery 2. Charging (1) Time: About 2 hours (2) Status: When charging, the indicator light flashes and stays on when fully charged 3. Usage time: About 2 hours 4. Waterproof rating: IPX7 5. Overall dimensions: 151 * 56.5 * 25mm 6. Function: (1) Cold compress: None (2) Hot compress: heating+temperature around 40 ℃ (3) Vibration: 5 gears 7. Brushing bristles (1) Area: 6cm * 6cm (2) Quantity: Total 1308pcs A.broadside part bristles：139pcs B.front part bristles：total，1169pcs(0.6mm bristles：1121pcs+other size bristles：48pcs) (3) Brush diameter: 0.6mm (4) Material: Silicone