Superior Sound Quality 

IPX7 Waterproof 

15 Hours Playtime

TWS function

Built-in mic for handsfree calls

lightweight & portable 

Model Name: Thunder  

Outdoor Portable Wireless Speaker 

Input Power: DC 5V

Impedance: 4Ω 

Signal to Noise Ratio: ≥ 78dB 

Built-in rechargeable battery 

Power Supply: Type-C (USB)

Built-in Mic -Range 33ft(10m) 

Frequency Response: 180Hz-12KHz 

TWS Sync Mode (Pair 2 of these speakers together) 

Up to 15 hours of playtime (battery life is measured as number of playtime with volume set at 50%)