Used a couple of times for testing. Chime sound confirmed. Transmitter waterproof push button & receiver set Battery-free type ELPA Asahi Denki Wireless Call 【WC-S6041AC】 Receiver: WC-P04 Transmitter: WC-P61 Operation confirmed ✔ Wireless type, no wiring required ✔ The receiver plugs into an outlet, and the transmitter generates power with the push, so no batteries are needed. ✔ The radio wave range is approximately 90m in clear sight. Ideal for calls and alarms in homes, stores, and offices. ✔ Approximately 1 million ID codes (identification codes) to prevent interference. ✔ 8 different notification sounds that can be set to your preference. ⭐ The push button is waterproof and can be used in bathrooms, toilets, and other areas with water. 【Specifications】 Power supply: Receiver AC100V 50/60Hz Waterproof push button transmitter: Generates power with the push (no batteries required) Volume: Approximately 85dB/50cm ※ At maximum volume Frequency: 314.8MHz (specified low-power equipment) ID code: Approximately 1 million Radio wave range: Approximately 90m in clear sight Operating temperature range: 0℃～40℃ External dimensions (approx.): Receiver: Width 57 x Height 106 x Depth 39mm, Waterproof push button transmitter: Diameter 75 x Height 42mm (excluding suction cup) Weight: Receiver: Approximately 88g, Waterproof push button transmitter: Approximately 89g (excluding suction cup) Protection rating: IP67 Dustproof and immersion-proof (waterproof push button transmitter) No price reduction, sorry. ✔ Immediate purchase is basically OK! Based on Mercari's regulations, priority is given to those who purchase immediately, even during transactions. ✔ When shipping via Mercari, the shipping method may change between [Rakuraku⇔Yuyu]. ✔ I have a job, so I may not be able to respond quickly, but I will always respond, so please wait with peace of mind! Shipping will be completed within 7 days at the latest. #ELPA Wireless Chime #WC-S6041AC #Call Chime #Nursing Care Supplies #Nursing Care Bathing Supplies #Waterproof