Whats a solo microwave

HYE Compact Microwave Oven 20L 700W Solo Manual White Microwave 44.6cm Wide | 6 power levels, 30 minute timer, quick defrost and reheat, room for a standard dinner plate, low standby energy use

Oven Single Fan Stainless Steel A Energy Rating Solo Microwave Oven in Silver Tact Built in Electric Single Oven - Stainless Steel Ideal for Roasting

Salter Marino Digital Microwave & Canister Set – 20L Freestanding Solo Microwave Oven with 8 Auto-Cook Functions & 95-Minute Timer, Carbon Steel