T&G TG623 TWS Portable Wireless Speaker Outdoor Waterproof Subwoofer 3D Stereo Support FM TF Card Features: 1. Magic speaker system design, amazing dual-power built-in bass radiator, the mid-low frequency is more shocking, with better sound quality performance; 2. Adopting advanced Bluetooth audio decoding chip to support pairing and playing music with Bluetooth devices such as mobile phones, tablets, TVs, etc.; Bluetooth transmission distance is greater than 10 meters; 3. Support hands-free call function, built-in high-sensitivity microphone, so that mobile phone calls have an extremely smooth call enjoyment 4. Support U disk and TF card music playback MP3 decoding, support full bit rate playback of MP3 format; 5. FM automatic search and storage of radio stations. Built-in FM radio module can automatically search and store radio stations, saving time and effort; 6. Support AUX audio input, provide you with computer speaker function; 7. Support hands-free call function, built-in high-sensitivity microphone, so that mobile phone calls have an extremely smooth call enjoyment 8. Built-in Low-freq radiators. Super dynamic low-frequency sound pressure gain, listening transparent and flexible. Specification: 1. Bluetooth specification: V5.0 2. Wireless transmission range: 10M 3. Battery capacity: 1200mAh 4. Built-in voltage: 3.7V 5. Charging time: 2-3 hours 6. Speaker specifications: 52MM plus 7. Speaker power: 5W 8. Charging input: 5V500MA 9. Waterproof rating: IPX5 10. Frequency response: 100Hz-20KHz 11. Signal to noise ratio: 85dB 12. Distortion rate: