3.5mm Jack AUX Interface Adapter Audio Input Direct Fit Toyota Avalon Celica Corolla Matrix Models for non-navigation only. Perfectly connect 3.5mm AUX device with car audio. Connection via CD changer Port -- Built-in power amplifier chip, static free CD quality clear audio sound -- Built-in high quality MP3/WMA decoder Gold Plated 3.5mm AUX Input Jack enhance High Digital Sound Quality -- Can be plugged into the head-phone socket of laptop, MP3 player, mobile phone, tablet -- Direct audio feed from external device into your car radio as a direct aux input. -- No signal interfere, No battery required -- Smart Design, Plug & Play, Easy Installation Total Harmonic Distortion: 0.01%; Frequency Response: 20HZ-20KHZ; Working Temperature: -10 - 80 RoHS Certificate Number: BSTDG13030385RR-4 CE Certificate Number: BSTDG13030385EC-1 Package includes: 1x Toyota CD 3.5mm AUX adapter + 1x user manual