Product Description

Bluetooth effective distance 30 meters Call support answer/hang up Support radio 87MHZ-108MHZ Support automatic storage station Radio antenna: external USB or earphone for antenna Audio format MP3 supports TF card, U disk maximum 8GB Audio input miniUSB audio input Audio output 3.5MM headphone output Working voltage DC 3.7V-4.2V Speaker size specifications External magnetic Φ40 iron frame 40 with side 54mm power 4Ω3W Response frequency 20Hz-20KHz Play time 50 minutes Charging time 120 minutes Charging voltage Limit voltage DC 5V Charging current DC 350MA