Features New generation 5 0 bluetooth chip technology low energy consumption strong stable signal fast pairing fast switching and so on HIFI sound quality full range loud speaker design no broken sound no hiss Natural and balanced bass output low frequency mellow Support hands free call function built in high sensitivity microphone so that mobile phone calls have an extremely smooth call enjoyment 7200mAh big battery capacity 12 hours of music playback Support AUX audio input provide you with computer speaker function IPX6 waterproof no need to worry about rainy days and splashing water Built in power bank you can charge your mobile phone in an emergency TWS wireless series connectionSpecification Brand XDOBOModel 1988bluetooth version V5 0Output Power 60WWireless transmission range ≥18m open area Audio noise ratio ≥90db Battery capacity 7200 mAhUsing Time 12 hoursCharging time 4 hoursFrequency response 65Hz 20kHz Working Voltage 3 7VProduct size 310 152 118mmPackaging1 XDOBO 1988 bluetooth Speaker1 Charging Cable1 User Manual