Chewy has the PetSafe Stay & Play Compact Wireless Pet Fence on sale for $135 with free shipping. Covers up to 3/4 Acre. No digging or wires to bury. Comes with collar that fits neck sizes from 6" to 28". 

To get the $30 Chewy gift card, enter coupon code FALL2022 [Exp 10/12] at checkout.