eSynicPortable Headphone Amplifier Rechargeble Audio Digital HiFi Earphone Amp 3.5mm with Two-stage Gain Switch, USB Cable and Aluminum Matte Surface for MP3 MP4 Phones Digital Players and Computers

eSynic Portable Headphone Amplifier Rechargeble Audio Digital HiFi Earphone Amp 3.5mm with Two-stage Gain Switch, USB Cable and Aluminum Matte Surface for MP3 MP4 Phones Digital Players and Computers

Syncwire Aux Cable 3.5mm –3.3ft/1M- Nylon Braided Aux Lead for Car, Headphone, iPhone, iPad, iPod, Samsung, MP3 Player, Smartphone, Echo Dot, Tablet, Home Stereos, Laptop and More – Black

Headphone Splitter Cable Syncwire 3.5mm Aux Splitter Adapter Nylon Braided Male to 2X Female Aux Extension Cord for Apple iPhone/iPod/iPad, Samsung, Earphone, Speaker, MP3 Player - 0.77ft/23CM (Black)