Coolqiya Wireless Doorbell Chimes with 2 Remote Waterproof Door Bell Buttons and 3 Plugin Receivers, Operating up to 1000 Feet Range, No Battery Required for Receiver, White

• 🔔 Long Range Remote Control Transmission, 150~300meter. Doorbell with strong working signal for most material door or wall, including glass, metal, wood...
• 🔔 Wireless Multiple door bells chimes - Easy to expand 10+ door buttons or door bell ringer, and split them up between multi-unit doorbells.
• 🔔 52 different ring tones and 4 levels volume to change - which can keep their ringtone and volume when power is removed, no need to reset.
• 🔔 IP55 waterproof door remote button, needs 23A 12V alkaline battery.
• 🔔 Easily Install - No batteries required for door bells, simply plug in socket; self-adhesive/screw-in to install door button.

You can pair transmitters with receivers one by one for a new code to get a ring tone or expand transmitter buttons/receivers. - Please pair transmitters with receivers one by one for a new code before you install the transmitters on the door frame. - If you have installed your transmitters on the door frame, please use the small screwdriver (included) to open the transmitter and take the front cover off, and take it close to the receiver to pair them. (Note: They can maintain their settings when power is removed, no need to reset). Here's how to pair them 1. Plug one receiver into a regular socket, and pick the sound you want on this receiver. 2. Press and hold the volume button on this receiver for 5 seconds or so, then the receiver will blink with a "ding" sound. And then push the transmitter button at the same time (within 5seconds) to pair with the receiver. Finally, you will hear the music you set. 3. The same way to pair other transmitter buttons with receivers. What's Included 3 * Receivers; 2 * Transmitter; 2 * 23A 12V Alkaline Batteries 4 * Screws & Anchors; 1 * Mini Screw Driver 2 * Sticky Pads; 1 * User Manual