FiiO F9 Pro

Technical Information:

Impedance: 28 Ohm

Sensitivity: 106 dB/mW

Amplifier requirement: No

Detachable Cable: Yes (MMCX Connector)

Target Headphone Loudness: 110,0 dB Sound Pressure Level

Power Required: 2,51 Milliwatts

Voltage Required: 0,2652 Volts

Current Required: 9,47 milliamps