Built-in Battery: 3.7V 350MAH Charging Interface: MICRO USB Light Color: White, Red, Green, Blue, Yellow, Purple, Sky Blue Product Weight: 17.8g Usage Time: About 3.5 Hours When Flashing Product Charging: 5V 1A Charging Time: About 90 Minutes Setting Mode: Fast Strobe, Slow Strobe Product Size: 4.8x3.43x1.84cm Features: 1.2.4G Wireless Remote Control, Remote Control Is More Convenient 2. Built-in Battery With Long-lasting Battery Life, MICROUSB Charging Socket And Matching Charging Cable 3. Deeply Waterproof, No Fear Of Rainy Days. The Strobe Light Is Deeply Waterproof And Can Be Used In Rainy Days. 4. Use High-brightness Multi-color Wicks, With White Light, Red Light, Green Light, Etc., Each Type Of Light Has A Good Effect 5. Universal Strobe Light, Widely Applicable, Improving Night Warning Effect And Signal Tracking 6. Seven Lights, Multiple Modes, Seven Colors Fast Flash, Seven Colors Slow Flash, Seven Colors SOS Mode, Seven Colors Always On, Civil Aviation Mode, Cycle Mode And Other 30 Modes With Memory Function Package Included: 1 set x (1 lamp, 1 set of accessories)/1 set x (2 lamps, 1 set of accessories)/1 set x (4 lamps, 1 set of accessories)/1 set x (1 lamp, 1 charging cable)