Feature: 1. Weatherproof Design: The wireless doorbell features premium material housing and has an IP44 water resistance rating, making it robust enough to withstand harsh weather conditions like rain and snow. 2. Customizable Ringtones: There are 52 music options to choose from, including voice ringtones from around the world. You can easily switch your ringtone with a single click and adjust the volume across four levels to suit your preference. 3. Silent Flash Mode: The doorbell includes a silent flash feature, making it versatile and considerate to different crowds, including those who may have auditory sensitivities. 4. Excellent Range and Signal: Wireless doorbell transmitter offers strong wall penetration and distance sensing capabilities, ensuring a great signal even at a distance. 5. Extended Wireless Range: The doorbell operates with a wireless working range of up to 200 meters, providing you with the flexibility to install the doorbell at long distances from your living area. Specification: Item Type: Wireless Doorbell Material: ABS Plug: US Plug 100-240V Transmitter Battery: 1 x 12V 23A Battery (Built in) Capacity: 60mAh (Single Battery Capacity) Frequency: 433.92MHZ Operating Voltage: 85-265V Volume: 110db (4 Level adjust) Music Options: 52 Melodies Wireless Operating Range: 200m / 656.2ft Waterproof Level: IP44 Button Indicator: LED . Package List: 1 x Receiver 1 x Transmitter 1 x Double Sided Tape 2 x Screws 1 x Instruction Manual