Power Source: BatteryWoofer Size/Full-Range Size: 3"Set Type: SpeakerMaterial: PlasticPMPO: 5WSupport Memory Card: YesOutput Power: 5WCabinet Material: PlasticFrequency Range: 100HZ-20KHZUse: Portable Audio Player, Mobile Phone, COMPUTER, OutdoorSpecial Feature: Wireless, PORTABLE, MiniPlace of Origin: Guangdong, ChinaStyle: 3 Inch LoudspeakerBrand: Original GTS brandmethod: USB, FM radio, TWS, TFSpeaker size & Unit: 3 Inch x 1pcBattery capacity: Rechargeable Li battery 500mAhAccessories: USB cable x 1pcFunction: USB/TF/FM RADIO/TWS