Retekess TT125 Instructions page 6

Specification parameter
1.Frequency of operation:2.4 GHz, support up to 999
communication channels
2.Receiving sensitivity:-106dBm.
3.Operating current:27mA.
4.Charging method: USB charging cable charging, charging
current is 1A, 4H full. Use the charging box to charge, the
charging current is 240mA, and it takes about 12 hours to
fully charge.
5.Operating temperature:-20°~ +70°
6.Headphones:32Omega,D-shaped.
7.Receiving distance:50-150m
8.Endurance: About 100H.
9.Dimensions:114.8 mm (L) * 54.8 mm (W) * 20.6 mm (H)
10.Battery capacity:3000mAh
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