The Rexton M-Core R312/R312T is a Receiver-in-Canal (RIC) hearing aid sold individually (single unit) at Costco. It is powered by a size 312 disposable battery, with the R312T variant adding an integrated telecoil (T-coil) for use with hearing loop-equipped venues. This model replaces the Rexton Adore line and delivers performance comparable to the Signia Pure 7X platform.

The M-Core R312 is built on Rexton's proven MotionCore technology, which uses an integrated motion sensor to automatically detect and adapt to your sound environment without manual adjustment. High Resolution Soundpro processing provides exceptional speech clarity, while automatic own voice detection ensures your own voice sounds natural. The hearing aid offers 48 channels, 20 gain handles, and 6 manual programs for precise fitting, along with Made for iPhone (MFi) direct audio streaming so you can stream calls, music, and media directly from your Apple device. A rocker switch provides easy on-device volume and program control across 4 power levels. The aids are wireless and compatible with optional Rexton accessories including the Smart Mic, Smart Transmitter 2.4, and Smart Key remote. Available in 10 colors to match personal style.