Portable Hi-fi Headphone Amplifier 3.5mm Stereo Audio Output With Switch Powered Dual-output With

Feature: 1. The aluminum matte surface, stylish design gives you a comfortable hand feeling, while the aluminum matte surface makes it durable. 2. Rechargeable lithium battery, using a rechargeable lithium battery with a capacity of 600mAH, can work continuously for more than 8 hours. Description: Name: Headphone Amplifier Lithium battery capacity: 600mAH Amplifier use time: more than 8 hours Amplifier internal voltage: ±4V/1A Signal-to-noise ratio: >100Db Total harmonic distortion: + N 0.0003% Output power: 40Mw impedance 16Ω Adapter headphone impedance: 16-300Ω Dimensions: 95x52x13 (L x W x H) Ampere battery voltage: DC3.7V - 4V Packing list: 1 x Headphone Amplifier 1 x USB power cable 1 x audio cable 1 x user manual 1 x packing bag Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks.