Bluetrum 5.0Earpud Battery:50mAhPlay time: 2-2,5 hoursCharging box battery 400mAhColor : Black / White Operating distance: Up to 10m
Impedance:24Ω±5ΩSensitivity:90dB±5dBFrequency response: 20Hz-20kHzOperational temperature: -10 to 50°