Two modes: Deterrent mode and training mode, you can choose according to your needs. The deterrent mode can prevent dogs from barking, and the training mode can help daily dog training. Rechargeable and long battery life: It can be used for 60 days after charging for three hours, no need to frequently replace the battery, saving costs. Wide control range: The control range reaches 35 feet, whether or outdoors, it can effectively control the dog's behavior. With LED light: It can illuminate the darkness when walking the dog at night, improving safety. Portable design: Small and light, convenient to carry, can be used conveniently anytime and anywhere. Battery capacity:800mA/H 2.96wH Operating voltage:DC 3.2-4.2V Static Current:less than equal 20uA Maximum working current:less than equal 2A Maximum charging current:less than equal 500mA Charging time:3H Charger specification:DC5V/1A Product weight:88g3g Colour:Black Material:Plastic Size:130x53x30mm Package Contents: 1 * Dog repellent 1 * Data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.