AU Lens Manuel D'utilisation page 8

SPECIFICATIONS
Bluetooth Version
Bluetooth Protocol
Bluetooth Range
Driver Type
Driver Size
Impedance
Frequency Range
SPL
Battery Life (total)
Battery Capacity
Charging Time
Weight
Waterproof level
Lens Material
Frame Material
BT 5.1
SBC, AAC
10m | 32ft
Dynamic
15mm
24 ohms
20Hz-20kHz
118±3dB
5 Hours
120mAh
1.5 Hours
49g
IPTX4
Polaroid polarized lenses
High grade plate (acetate fiber) frame