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60hours keep playing time neckband wireless earphones
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Bluetooth 5.1

Input voltage: 500mah 3.7V rechargeable lithium battery

Play time: 60 hours,                           talk time: 62 hours long   standby time: 400 hours

Charging input voltage: DC5V 500MAH

F13 loudspeakers*2 low bass

Frequency response range: 20Hz-20KHz

Sensitivity:   93dB 2dB

Signal-to noise ratio: 80Db Transmit/Receive Frequency: 2.4---2.48GHz

Distance: barrier-free 10m                                     Type-C fast charging port,30min full charging