Specifications:

ULTRASONIC BARK CONTROL: Latest upgrade version, Stop excessive, noisy
dog barking by emitting an ultrasonic sound to silence the dog; More
effective than old version deterrents and waterproof.
SAFE AND EFFICIENT: Contain sensitive microphone isolates, ultrasonic
controller for bark with effective distance of 50 feet, and people couldn't hear
the sonic (recommended starting mode for indoors is level 1, increase if needed).
FOR DIFFERENT SIZES: This mini bark control deterrents uses high-frequency
sound that works to reduce excessive bark of dogs within hearing
range; For dogs 6 months and older UP TO 50 FOOT RANGE. Without need of
traditional collar is safe for the most varieties of dogs.
MINI DESIGN: This ultrasonic no barking controller comes with a well-designed
mini shape, can be hung on a tree, indoor, outdoor wall or fence
post to stop any dogs barking(within range); Four buttons for operation,
including a test button, an off button and 3 level buttons.
ENERGY SAVING: Operates 9-Volt batteries (not included),average battery
life 5-6 months depending on use.

ULTRASONIC BARK CONTROL: Latest upgrade version, Stop excessive, noisy
dog barking by emitting an ultrasonic sound to silence the dog; More
effective than old version deterrents and waterproof.
SAFE AND EFFICIENT: Contain sensitive microphone isolates, ultrasonic
controller for bark with effective distance of 50 feet, and people couldn't hear
the sonic (recommended starting mode for indoors is level 1, increase if needed).
FOR DIFFERENT SIZES: This mini bark control deterrents uses high-frequency
sound that works to reduce excessive bark of dogs within hearing
range; For dogs 6 months and older UP TO 50 FOOT RANGE. Without need of
traditional collar is safe for the most varieties of dogs.
MINI DESIGN: This ultrasonic no barking controller comes with a well-designed
mini shape, can be hung on a tree, indoor, outdoor wall or fence
post to stop any dogs barking(within range); Four buttons for operation,
including a test button, an off button and 3 level buttons.
ENERGY SAVING: Operates 9-Volt batteries (not included),average battery
life 5-6 months depending on use.