• Eco-friendly material and durable: Made of ABS+PC material, the surface is treated with a bright classic white design, which can resist corrosion wear and oxidation
• Safe charging, no hot: ABS+PC housing, good heat dissipation performance. It does not get hot for a long time 
• Multiple protection system rest assured to use: After safety control, in line with national production standards 
• Weight about 17g small smart light and light degree. It can easily fit into a pocket and carry around without a burden
• Instant full charge easy battery life: Connect USB and Type-C plug/laptop USB and Type-C port/car charger USB and Type-C port to charge

Specifications:

• Model: S4 (without battery)
• Material: ABS+PC
• Type-C Input: 5V
• USB Input: 5V
• Watch Wireless Output: 2.5W
• Product Size: 38 x 38 x 13mm 
• Product Weight: 18g