Bluetooth HIFI Headphone Amplifier Amp 3.5mm HiFi Stereo Audio Out Portable Headphones Amplifiers For Earphone

Introduction This is built-in battery portable HIFI headphone amplifier,which support charging and adjusting volume and bass.Using 3.5mm cable connect it to your PC,smartphone and game console, etc.it used to improve the volume and sound quality of headphones. Features 1) Built-in High Capacity Battery 2) Support Charging Over Voltage Protection 3) Support 16~600 Ω Impedance Earphone 4) Support Output Volume Adjustment And Bass Adjustment 5) Support One 3.5mm Headphone Port And One 3.5mm Input Port 6) Type-C Port For Charging 7) Aluminum Alloy Material, Full of Texture Specification Lithium Battery Capacity：1400mAH Amp Using Time：More Than 24 Hours Amp Internal Voltage：±5V/0.5A SNR>100Db THD+N 0.0003% Output Power：40Mw in Impedance 16Ω Adapted Headphone Impedance：16-600Ω Dimension：104.5x16.5x63.5mm Amp Battery Voltage：DC3.7V - 4V Package List Headphone Amplifier * 1 USB Power Cable * 1 3.5MM Audio Cable * 1 User Manual * 1 Attention: Note: There are two model headphone amplifier AY127, AY132. AY127 is a headphone amplifier ,without bluetooth function. AY132 is bluetooth headphone amplifier. Other function is the same.