“GGMM E5 has built-in high capacity rechargeable lithium-ion battery that supports 15 hours of playtime at 20 Watts output.” — GGMM E5 Wireless Bluetooth 4.0 Superior Sound Speaker Android Copy Share Image
“GGMM E5 Wireless Bluetooth 4.0 Superior Sound Speaker with 15 Hours Playtime, Enhanced Bass Built-in Mic for Hand-Free Function Charging Port for… — GGMM E5 Wireless Bluetooth 4.0 Superior Sound Speaker Android Copy Share Image
