redmi earphones 4
$29.00
Product parameters
Product model
M2137E1
Wireless connection
Bluetooth 5.2
Communication distance
10m (barrier-free open environment)
Net weight of single earphone
About 4.5g
Total weight including charging box
About 49g
Earphone battery life
About 6 hours (noise reduction off)
Earphone battery life including charging box
About 30 hours (noise reduction off)
Charging port
Type-C
Earphone size
Width 18.4 * Height 21.9 * Thickness 24.6
Charging box size
Width 48.6 * Height 64.9 * Thickness 26.2
Packing list
Charging box × 1
Earphone × 1 pair
Ear caps × 3 pairs
(M size pre-installed)
Type-C charging cable × 1
User manual × 1
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