Smart Dog Ball Thrower

Mini tennis ball launcher size :21x24cm It contains 3 5cm diameter balls, a power cord plug, atransmitter and a product booklet. This product gives dogs around the world the chance to playcatch to their hearts' content. With it, your dog will never bebored again. It gives you and your pet a playtime. How to use After 3 seconds, press the power switch to turn on, and thepower indicator is on. Three seconds after the power switch,the mainframe shuts down. After turning on, press several power switches respectivelyand select a throwing distance of 3 meters /6 meters /9meters. There are infrared sensors at the bottom of the main tball where the ball crosses. Scan every 10 seconds, the hostcan send a ball every 10 seconds.