Easy do-it-yourself radio coding of the collar with the remote control you can code the collar indefinitely, either with the same remote control, or with a new one from the EYENIMAL REMOTE TRAINER range. Includes warning beep sounds, low battery indicator on the collar and low battery indicator on the remote control. Remote control is waterproof. Remote battery life approx. 50 000 triggers. Receiver collar battery life approx. 7 months in stand by, approx. 2 months in intensive use. No external antenna remote control and collar . Remote control weight 40 g battery included 1.41 ounces . Remote control dimensions 96 x 40 x 18 mm 3.78 x 1.57 x 0.71 . Remote control power 1 3-V CR2430 lithium battery supplied . Receiver collar weight 75 g battery included 2.64 ounces . Receiver collar dimensions 38 x 68 x 43 mm 1.5 x 2.68 x 1.69 . Receiver collar power 1 3-V CR2 lithium battery supplied . Strap length 65 cm 25 / width 25 mm 0.98 €“ adjustable for neck sizes from 20 up to 50 cm 7.87 to 19 . Features n Up to 250 yards range depending on geography and environment n Remote control operates 1 collarn High quality washable strapn Receiver collar compatible with any remote control from the EYENIMAL REMOTE TRAINER rangen 5 levels of stimulation