Description: WIRELESS SS: It' s suitable for all size dogs: small, medium or large! It's also can be used as a wireless for home or as caregiver page for an elderly/sick patient. SIMPLE PRINCIPLE: slove the pet pressing problems so as to they can touch the activator through the nose or claw. Self Adhesive: Dog s for training without wiring, use adhesive stick it on the door or wall or place anywhere you need. CUSTOMIZABLE: Has 55 first polyphonic rings tones and of adjustable volume, you can choose the size of your favorite rings tones and rings tones (0-110 decibels), set to Rings. LONG RANGE & WATERPROOF: Receiver and in the barrier free environment, the maximum effective working distance can reach 300meters/984.25ft. The waterproof grade is IP44, can work normally on rainy days, and can be used indoors and outdoors. Specification: Material: Plastic Operating Temperature: -C to +C Operating Frequency: 433.92MHz±280KHz Size Chart: : 6x6x1cm/2.32.36x6x0.39inch Receiver: 7.5x7.5x7cm/2.95x2.95x2.76inch Package Includes: 1 Piece 1 Piece Receiver 1 Piece Adhesive Tape 1 Piece Manual 1 Piece Screwdriver Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!