Battery-free wireless chime set / WC-S6041AC 1 set

●Size/Receiver: Approx. W5.7 x D3.9 x H10.6cm, Waterproof push button transmitter: Diameter 7.5 x H4.2cm (excluding suction cup) Weight: Receiver: Approx. 88g, Waterproof push button transmitter: Approx. 89g (excluding suction cup) Power supply/receiver: AC100V 50/60Hz, waterproof push button transmitter: Generates power by pressing (no batteries required) Volume: Approx. 85 dB (50 cm/maximum volume) ●Frequency: 314.8MHz (specified low-power device) ● ID code: Approximately 1 million combinations Radio wave reach: Approximately 90m in line of sight ●Usage temperature range: 0℃ to 40℃ ●Waterproof specification/IP67 dustproof and water-resistant (waterproof push button transmitter/cannot be submerged in water) ●Accessories: Suction cup mounting sticker x 1 ● Country of Origin: China ●Number of units per case: 40 - Wireless type that requires no wiring, making installation easy! - The receiver simply needs to be plugged into an outlet, and the transmitter generates power by pushing it, so no batteries are required. -The push button is waterproof, so it can be used around water, such as in bathrooms and toilets. The radio wave has a line-of-sight range of approximately 90m. It is ideal for calling and reporting in ordinary homes, shops and offices. - There are approximately 1 million possible ID codes (identification codes), so there is no need to worry about interference. - 8 types of alarm sounds that can be set to your liking.