Guitar Pedal X - GPX Blog - TC Electronic's Infinite Sample Sustainer Pedal is a Cool New Evolved Layered Fade In/Out Freeze / Sustainer Effect with added Reverb and FX Loop
EHX Freeze Modifications - Stompbox Electronics
Electro Harmonix Freeze Sound Retainer – Thomann UK
Electro-Harmonix Deep Freeze Sound Retainer Effects Pedal | Music & Arts