Realme DA2001, Manual

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Theoretical (single) call time：
approximately 3hrs（50% volume，ANC OFF/ON）
Normal mode connected Bluetooth standby time: 30H
Into the charge case standby time: 180 days
Theoretical (single) playback time:
4.5hrs，earbuds with charging case 22.5hrs（50%
volume，ANC ON）
5hrs，earbuds with charging case 25hrs （50%
volume，ANC OFF）
Part 4. 25hrs Total Playback
single earbud: 30 mAh
charging case: 400 mAh
Earbuds: 1hr to charge 100%
earbuds with charging case: 2hrs to charge 100%
USB type-C（not supporting wireless charging）
Charge the earbuds for 10 mins with the charging case
for 120 mins playback (ANC OFF, after the earbuds
and the case's battery run down, place the earbuds in
charging case and charge the charging box and
earbuds for 10 mins)