Introducing the switch: 1 key: turns on the lighting. 2 keys: turn off the light and turn on the light ring. 3 buttons: turn on both the light and the light ring. 4 buttons: switching off the light ring and lighting. / 196.85 inches of rope length, free control back and forth. Pet Leash Features: One key lock, one snap stop, U-shaped rope exit, 180 ° without rope wrap , TPE soft rubber arc handle, fits the grip, soft and comfortable. Light touch traction: battery power, battery life up to several hours, light touch to emit light, lighting, lamp balls from 100 lm, irradiation distance of 5 m.