Our dog training collar is designed with 2 channels control, so convenient for you to train and play with 2 dogs at the same time. There are 3 extremely efficient and safe training modes (beep, vibration and shock modes) for you to teach a dog basic obedience commands and correct your dog’s inappropriate behaviors. Also 9 levels are available for you to adjust the accurate intensity of shock or vibration for your dog. Designed with IP67 waterproof, which can work well even if immersed in water, so your dog can wear it when bathing and swimming (Note: Do not immerse in water for more than one hour). Moreover, it has longest remote range (up to 1640ft), which helps you to freely train your dog at backyard, park, beach, etc. and remote Through-Wall design can stop your dog from barking when you are in another room. 2 Channels Control: Our dog training collar supports 2 dogs training with only 1 remote transmitter. If you have 2 dogs in your house, our dog training collar would be the perfect option for you. 3 Training Modes: Provides 3 extremely efficient and safe training modes (beep, vibration and shock modes) for you to teach a dog basic obedience commands and correct your dog’s inappropriate behaviors. 1-9 Levels of Static Shock: Do you fear to hurt your dog in Shock Mode? Our dog training collar offers adjustable 1-9 static levels for you. You can adjust the accurate static level for your dog. Longest Remote Range: Up to 1640FT remote control range, our dog training collar helps you to freely train your dog at backyard, park, beach, and seaside. Remote Through-Wall design can stop your dog from barking when you are in another room. Quick Charging: Our dog training collar is rechargeable. About 2 hours rapid charging, its standby time can be up to about 14 days. Designed with USB charging port, can be conveniently charged via PC, phone charger, laptop, or power bank. Warm Notes: Proper fit of the collar is important! A collar worn for too long or made too tight on the pet\'s neck may cause skin damage. The receiver collar should fit snugly yet be sufficiently loose to allow one finger to fit between the strap and your pet’s neck. Please make sure to use the conductive silicone set, this will protect the dog\'s skin to a certain extent, but it does not affect the electric shock function. Avoid leaving the collar on the dog for more than 12 hours per day. If possible, reposition the collar on the pet\'s neck every 1 to 2 hours. We suggest not using the shock function except in an emergency. When using the shock function, Level 1 should be tried first and then the level should be gradually increased as necessary. Brand: Fresh Fab Finds Product Type: Dog Training Collar Specifications for Remote Transmitter: Material: ABS Silicone Color: Black Remote Transmitter Output: 100-240V/ 50/60Hz 0.3A Remote Transmitter Input: 5V/ 500mA Working Voltage/Current: 3.7V/ 40mA Standby Voltage/Current: 3.6V/ 5mA Quiescent Current: 45uA Charging Port: Micro USB Interface Battery Type: Lithium Polymer Battery Battery Capacity: 500mA Charging Time: About 2 Hours Standby Time: 2 Weeks Sleep Time: 20 Seconds Remote Range: 200-500m/ 656-1640ft Transmitting Frequency: 433.926MHZ Product Size: 4.5x3.5x14cm/ 1.77x1.38x5.51in (L×W×H) Product Weight: 65.5g/ 0.14lbs Specification for Collar Receiver: Collar Receiver Material: ABS Silicone TPU (for Collar) Color: Black Collar Receiver Output: 100-240V/ 50/60Hz 0.3A Collar Receiver Input: 5V/ 500mA Remote Range: 200-500m/ 656-1640ft Receiving Frequency: 433.926MHZ Charging Port: Micro USB Interface Waterproof Level: IP67 Battery Type: Lithium Polymer Battery Battery Capacity: 300MA Working Current: Shock Mode: Max 90mA Vibration Mode: Max 90mA Beep Mode: Max 85mA Charging Time: About 2 Hours Standby Time: 1 Weeks Sleep Time: 1Minute Bark Collar Size: 7x3x3.5cm/ 2.76x1.18x1.38in (L×W×H) Bark Collar Product Weight: 51g/ 0.11lbs Adjustable Collar Strap Size: 73cm/ 29in Package Size: 16.4x14.6x4.3cmcm/ 6.46x5.75x1.69in (L×W×H) Package Weight: 322g/ 0.71lbs 1 x Remote Transmitter 1 x US Adapter 1 x Test Light 1 x Hang Rope 1 x USB Charging Cable 2 x Shock Electrode 1 x Collar Receiver 1 x Adjustable Collar Strap 1 x User Manual