Amazon.com: UrbanX 3.5mm Nylon Braided Aux Cable 3.3ft/1m Hi-Fi Sound, Audio Adapter Male to Male AUX Cord for Cat S31 Headphones, Car, Home Stereos, Speaker, Echo & More : Electronics
Amazon.com: Tek Styz Speaker Compatible with Your CAT S31 Fabric Design 3W Playtime 6H Indoor, Outdoor Travel (Gray) : Electronics