Our upgraded U20 handheld dog repeller features dual ultrasonic transmitters, delivering double coverage and stronger deterrent effect than single-head models. It emits 35–45kHz silent ultrasound irritating stray/aggressive dogs while remaining totally inaudible to humans, a humane choice without spray, shock or physical harm.

Built-in bright LED flashlights support night walks, jogging and mail delivery safety. Its lightweight ergonomic body fits pockets easily, paired with a wrist lanyard for instant access. Wide effective range reaches up to 30ft to block approaching dogs in advance.

Simple one-button operation suits runners, cyclists, couriers and residents. Durable ABS shell resists daily drops, with rechargeable Type-C battery for long standby. Stop worrying about threatening dogs outdoors; U20 brings reliable portable safety wherever you go.