bousnic dog training collar 2 dogs upgraded 1000ft remote rechargeable waterproof electric shock collar with beep vibration shock for small medium large dogs (15lbs - 120lbs) bousnic how to adjust the vibration and shock level?<br/> 1: press the 1/2 button once to change channel 1 or channel 2.<br/> 2: press and hold 1/2 button until the vibration digit number blinks, then press “ + - ” to adjust vibration level from 1-8.<br/> 3: or until the shock digit number blinks, press “ + - ” to adjust shock level from 1-16.<br/> you also can refer to the page 11 of instruction. and contact bousnic customer service a tutorial video<br/><br/> when you're looking to improve your dog’s behavior at home or in social settings, the bousnic dog training collar is the perfect solution to all your dog training needs. <br/><br/> safe, humane, and effective, these collars are great for dogs of all shapes, sizes, and breeds. and thanks to the adjustable static shock, vibration and beep stimulation modes, you’ll find a safe stimulation that works for your dog’s behavior and needs. <br/><br/> dog shock collar details:<br> - rechargeable collar and remote:<br/> - remote battery: 240mah (lithium ion) <br/> - receiver battery: 300mah (lithium ion) <br/> - vibration: 1- 8 levels<br/> - shock: 1-16 levels<br/> - beep: standard<br/> - range: up to 330 yards<br/> - charge time: 2-3 hours<br/> - lasts 15-20 days per charge<br/> - lcd display, light mode<br/><br/> order includes:<br/> remote transmitter<br/> collar receiver with strap <br/> power adapter<br/> usb charging cable<br/> test bulb<br/> wrist strap<br/> contact points (4-pcs) <br/> conductive silicone (4-pcs) <br/> instruction manual <br/>