Audio Input: 3.5 mm stereo jack
Volume Control: ALPS potentiometer
Drive Ability: 16 to 150 ohms
Battery Capacity: 1400 mAh
Output Power: 270 mW 32 ohms and 450 mW 16 ohms
1 level bass boost
Power Input: DC5V 1A
 
The FiiO E11K Kilimanjaro2 Portable Headphone Amplifier, made from an aluminum-alloy body and chassis increases metal texture and shielding from EM interference. It can work while charging, 1400mAH built-in battery ensures more than 16hrs of battery life. Its new toggle switches are more reliable and easier to operate. Fully discrete bass circuit design Boosts bass effect without influencing the overall sound field .Bass off: Bypasses bass circuit, decreases interference and noise floor so as to ensure the purity of the sound quality. Improved sound performance Pre amplifier OPA1642 serves as the voltage amplifier with great layering and medium and high frequency extension. Power amplifier AD8397 serves as the current amplifier, with great control of low frequencies and smooth drive ability.