Size: 3cm (length) x 4cm (width) x 1.5cm (height) Color: Brown Weight: 12g About TICKLESS TICKLESS emits ultrasonic waves that are inaudible to humans and pets, preventing the infestation of ticks and fleas. It is safe to use as it does not use chemicals. The built-in battery provides approximately 9-12 months of effectiveness. The effective range is 1.5 meters in radius. Chemical-free, odorless, and protects pets of all ages. How to Use: Simply attach it to your pet's collar. Remove the insulation strip, and the LED will light up, turning on the device. To check the battery, press the gray part; if the LED lights up, the battery has remaining power. Suitable for all dogs and cats, regardless of breed or size. *After removing the insulation strip, the device will remain on continuously and will operate until the battery runs out. The Power of Ultrasonic Waves The human hearing range is 20Hz~20KHz. Pets can hear ultrasonic waves, but they cannot hear the 40 kHz frequency of TICKLESS. Precautions: For maximum effectiveness, keep the device attached to your pet at all times. If ticks or fleas are already present, clean your pet with shampoo, etc., to remove them before use. *Please note that the effectiveness may be reduced depending on the surrounding environment, such as areas with a high concentration of ticks and fleas. It is not waterproof; if the device gets wet, dry it immediately. Keep out of reach of children to prevent accidental ingestion.