Overview The Chimeflash is a wireless doorbell alerting system with a lot of amazing features including ultra-bright flashing LED lights, loud sound with volume control, and indicator symbols. The Chimeflash was created with hard-of-hearing people in mind, but it will also work for persons with vision impairments or those who simply need a decent doorbell that has a long range, is reliable and is loud. You can choose how you would like to be alerted, either by Sound only, flash Only or Sound and Flash together. The Bellpush has a brilliant mounting system whereby you have a mounting plate that fixes to the door, frame or brickwork, you then attach the push to the plate, which means no more opening up of the bellpush when its time to change the battery, the bellpush is also waterproof and is rated to IP56. The bellpush uses the CR2032 coin cell battery type which is supplied with the system. There is a Green confidence light around the push button which lets you know that the push has been activated. What's in the box? Chimeflash Bellpush with Mounting Plate (Sticky Pad fitted) Chimeflash Receiver 3 x "C" size Alkaline Batteries 1 x CR2032 Battery 2 x Wallplugs 2 x Screws Instruction Drilling Template What's in the box https://youtu.be/hh9eIDs2TBs Bellpush battery installation https://youtu.be/Y5FfvTNnqXU Receiver battery installation https://youtu.be/dhkoRuMOGjw System programming guide https://youtu.be/_p7b6gVA3jo Changing sounds on the receiver https://youtu.be/xMHFTf7s7BM Features Easy access battery compartment Battery removal ribbon Multifunctional button/scroll wheel accessing the intuitive programming system Three alerting options: Sound only, Flash only or Sound and Flash together Ultra-bright flashing light indicator symbols 6 x Extra loud doorbell and telephone chime sounds of up to 100dB! Batteries Included! Up to 300m range in open space Optional Telephone Transmitter and Mains Power supply available Technical Information Receiver: Transmission frequency 868.4 MHz Power supply 3x "C" size batteries or optional mains power supply (DC 12V/1A) Battery Expectancy: Up to 12 Months Volume up to 100 dB at 1 m distance Temperature range 0 to 40°C Transmitter: Transmission range up to 300 m (in open areas) transmission power