OnePlus Buds

Specs

Model:   E501A

Product colors:   White/Gray

Dimensions:   Earbud: 18.81*16.13*37.89 mm   ,  Charging box: 52.21*59.62*24.4 mm

Weight:   Earbud: 4.7 g   , Charging box: 37 g

Driver:   13.4 mm dynamic

Driver sensitivity:  97 dB ± 3dB @ 1 KHz

Frequency response range:   20 Hz - 20 KHz

Microphone senstivity:  -38 dB ± 2dB

Bluetooth version:  BT 5.0

Wireless range:  10 meters

Charging interface:  Wired: USB Type-C

Time to fully charge:  Earbuds+Charging box: ～80 mins

Rated capacity:Charging box: 420mAh

Earbud battery: 35 mAh (per earbud)

Playtime (fully charged):  Up to 7 hours (music playback)  ,4 hours (phone call)  ,Up to 30 hours (music playback)

Fast charge: 10 mins for 10 hours (charging box+earbuds) , 10 mins for 2 hours play time for the earbuds