- Anti-bark device for dog training and bark control - 3 degree sound frequency range - Suitable for all size dogs - Emits sound at 15KHZ-30KHZ - Doesn"t affect humans or animals - Control range of 10 meters - IPX4 waterproof - Portable and rechargeable - Chargeable lithium battery - 5hrs charging for 30 days of work time - Not effective for dogs with hearing problems - Not recommended for dogs under 6 months or over 8 years old - Training required for effective and long-lasting use - Material: ABS - Color: Black - Power: 3.7V 1500mah Lithium Battery - Size: 11 x 8.5 x 4.9 cm - Weight: 200g - Package includes: 1 x Anti-Barking Device, 1 x Lanyard, 1 x Charging Cable, 2 x Nail, 1 x User Manual When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!