"Feature• 100 levels of vibration. • 100 levels of static . • The levels can be altered by use of up & down button.• The system can be used for 1 or 2 receivers. (The additional receiver must be the same type as your previous one and purchased from us) • The range is about 100m • Collar Length is adjustable from 8 to 20 inch. Please check the size before purchase.Note: the receiver and remote BOTH can be rechargedHow to Use Prepare the Remote Transmitter:• Charge the Remote Transmitter:1. Connect the charger connector to the charging jack.2. Plug the charger into a standard outlet.3. The red light on the Transmitter will be lighted.4. Charge the Transmitter at least 6 hours for the first charger.5. After fully charged, the red led will be turned off automatically.Low battery Indicator(the symbol) :Q will show up on the right down side of LCD screen.• Use the Transmitter:1. To turn on/off the Transmitter,Press the mode button on the Transmitter for 5 seconds.2. By pressing the Mode button to change to different modes ----the LCD images will change.3. Press the up and down buttons on right hand side to set level.4. Choose the different channels for different receivers.5. The Transmitter will go into STANDBY MODE if not operated for 20 seconds and will TURN OFF if not operated for 2 minutes.6. In STANDBY MODE, press any button (except LED light button) to wake it up.Prepare the Collar Receiver:• Charge the Collar Receiver:1. Connect the charger connector to the charging jack.2. Plug the charger into a standard outlet.3. The red LED light inside the Collar Receiver will turn on4. Charge the Collar Receiver at least 6 hours for the first charge.5. After fully charged, the red LED light will be turned off automatically.6. When charging is completed, put the rubber cover in the right position to keep the internal unit from dust and water.Low battery Indicator:the Collar Receiver will keep beeping for 2 minuets unless It gets charged.• Connect the Transmitter with the Collar Receiver:1. Turn on the Transmitter and choose 1or 2 channels to encode.2. Lift the Reset part of the Rubber cover in the Collar Receiver.3. Use a toothpick or paper click to insert into the Reset HOLE inside the Collar Receiver.4. Press the LAUNCH button on the Transmitter immediately while you are hearing a beep from the collar.5. The Collar Receiver will beep , it means that the Transmitter has encoded the collar.6. After completion, put the rubber cover in the right position to keep the internal unit from dust and water.Please attention that all our collars are NOT waterproof.Package included• 1 x remote control unit • 1 or 2 x collar • 1 x charger &cord• 1 or 2x test light &replacement probes• 1 x Operating Instructions"