Hoistspark Rechargeable Weather-Proof Ultrasonic Dog Bark Control Training, Green

• Features four adjustable sensitivity and frequency levels (1-4 and 15KHZ-30KHZ) to fit different dogs’ needs.
• Easy to use with a built-in pickup that can detect the dog’s barking within 50 feet and automatically emits ultrasonic sound.
• Range of up to 50 feet, covering both indoor and outdoor areas.
• USB charging and IPX4 weatherproof for long-lasting use.
• Safe for people and dogs, emitting an ultrasound that only dogs can hear.

1.Please charge the device fully by USB before first time .
2.Please DO NOT install the device in water .
3.The product CAN NOT work while charging .
4.If the product is not use for a long time (for example :more than one month ),before using it ,Please charge it fully by USB . And if it doesn’t work after fully charged ,please Restart.