ELPA Wireless Chime Push Button Transmitter Set EWS-1001

[Product name] Wireless chime set [Manufacturer] ELPA [Model number] EWS-1001 Product specifications - Batteries used Receiver: 3 x AA alkaline batteries (sold separately) Push button transmitter: 1 x CR2032 coin-type lithium battery (sold separately) - Battery life Receiver: Approximately 1 year (used 10 times per day) Push button transmitter: Approximately 2 years (used 10 times per day) - *Battery life may vary significantly depending on battery performance and usage conditions.・Volume: Approximately 70dB/50cm ・Radio Range: Approximately 50m (line of sight) ・Frequency: 313.625MHz (Specified Low-Power Device) ・ID Code: Over 250,000 ・Operating Temperature Range: 0°C - 40°C ・Dimensions (mm)/Weight: Receiver: Approx. 81mm (H) x 137mm (W) x 40mm (D) (Weight: Approx. 124g) Pushbutton Transmitter: Approx. 95mm (H) x 41mm (W) x 28mm (D) (Weight: Approx. 48g) ・Water Resistance: IP44 (Waterproof) (Pushbutton Transmitter) ・Accessories: 3 mounting screws, 1 sheet of double-sided tape Manufacturer Model Number: EWS-1001 Receiver Size: Approx. 8.1mm (H) x 13.7mm (W) x 4cm (D) Pushbutton Transmitter Size: Approx. 9.5cm H x 4.1cm W x 2.8cm D Receiver Weight: 124g (excluding batteries) Pushbutton Transmitter Weight: 48g (excluding batteries) Materials: Receiver (ABS) / Transmitter (Polycarbonate resin) Country of Origin: China