Product information:
Power type: USB
Color: red and blue pairs, skin color pairs
Specifications: red and blue (a pair of packages)
Material: ABS
Peak OSPL 90(dB SPL):117dB
HAF OSPL 90(dB SPL):110dB
Peak Gain (dB):32dB
HAF/FOG gain (dB):29dB
Frequency range (Hz):300-3500Hz
500Hz:3%
800Hz:3%
1600Hz: 3%
Equivalent input noise (dB):25dB
Voltage: DC 3.7V
Current: ≤ 1.5mA
Charging time (H):4 to 6 hours
Working hours (H):20 hours
Battery: Built-in lithium battery
Current: 1.5mA