Portable HiFi Headphone Amplifier Volume Adjustment Bass Control Rechargeable 3.5mm HiFi Earphone AMP for MP3 MP4 Phone

Feature: 1. HIGH PERFORMANCE: HiFi headphone amplifier supports most high impedance 16‑300 Ohm headphones, SNR>100Db, THD+N=0.0003percent , enjoy excellent sound. 2. TWO STAGE GAIN SWITCH: Portable HiFi headphone amplifier has a two stage gain switch, make it to output not only louder sound but a sharper and more real stereo sound without distortion. 3. RECHARGEABLE BATTERY: Headphone amplifier has 1500mAh rechargeable lithium battery, working more than 8 hours. There is a volume control knob for volume adjustment. 4. LIGHTWEIGHT AND PORTABLE: HiFi earphone AMP adopts portable and lightweight design, sturdy aluminum alloy shell, suitable for enjoying music anytime and anywhere. 5. WIDE COMPATIBILITY: Portable HiFi earphone amplifier has a wide range of compatibility, can be paired with MP3, MP4, Phone, music player and many other devices. Specification: Item Type: HiFi Headphone Amplifier Material: Aluminum Alloy Impedance: 16‑300 Ohm SNR: >100Db Battery Type: 1500mAh Lithium Battery (included). Package List: 1 x Amplifier1 x Charging Cable1 x Sound Cord1 x Instruction Manual