Cordless Headphone Amplifier, Wireless Headphones Booster, 12H Playtime, Hi-Res Sound, Deep Low Tones, Supports USB Drive Memory Card, for Trips, House Office

High-Fidelity Headphone Amplifier — An amplifier specifically created for earphones with impedance values ranging from 15-150Ω, with a signal-to-noise ratio > 100Db, THD + N=0.0003%, which can fully filter noise and experience high-quality audio. Compact Headphone Amplifier 3.5 mm Stereo Output — The earphones audio cord featuring a gold-plated interface, enhances your 3.5 mm headphone output audio quality and tonal color, producing a truer stereo output. Cut down Background Noise By Up to 93%: Our team of engineers performed more than 10,040 tests in real-life scenarios to perfect the Wireless Headphone Booster. Consequently, This Cordless Earphone Booster is able to detect and cancel out a more significant range of low- and mid-frequency sounds such as cars and plane noise. Stylish Design Provides Comfortable Handheld Experience And with its Aluminum Matte Surface Ensures Durability, Long-lasting Headphone Amplifier — Aluminum alloy casing, shield and reduce signal interference, improve heat resistance Ten-Hour Playtime*: Up to a maximum of 12 hours of continuous listening in wireless mode (when played at 70% sound level) is lengthened to as long as 15 hrs in standard audio mode. One full charge gives you enough power to listen to over 300 songs or provide audio for multiple long haul flights. And when you’re in a rush, charge Life Headphone Amplifier for 5 minutes and get 4 hrs of listening.