Power supply charge voltage: DC 5V (USB)
Battery characteristics 3.7V 300mAh
Bluetooth version V5.0
Bluetooth channel emission power BTH +6dbm
Bluetooth Frequency 2402 – 2480 MHz
Bluetooth action range 10m
FM frequency 87.5-108 MHz
Speakers 40mm/pcs
Frequency Response 20-20KHZ
Charging time 2-3 hours
Playing time 7 hours
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