Portable wireless chime PWC-100 1 piece

It's wireless, so no wiring is required, making it easy to install! It's also convenient to carry around with the included belt hook! It is suitable for paging and alerting purposes in ordinary homes, stores, and offices. There are approximately 1 million ID codes (identification codes), so there is no risk of interference. Power supply: Receiver: 2 AA batteries (sold separately), Push button transmitter: 1 CR2032 coin-type lithium battery (sold separately) Battery life: Receiver/approximately 2 years (used 10 times per day) *When using alkaline batteries, Push button transmitter/approximately 2 years (used 10 times per day) *Battery life may be shorter depending on battery performance and usage conditions. Volume: Approximately 78dB/50cm *The alarm sound and volume cannot be changed. Frequency: 315MHz (specified low-power device) Radio wave reach: Line of sight approx. 80m ID code: Approximately 1 million Operating temperature range: 0℃ to 40℃ External dimensions (approx.): Receiver/Width 64 x Height 79 x Depth 32 (mm), Pushbutton transmitter/Width 39 x Height 81 x Depth 23 (mm) Weight *Excluding batteries: Receiver/approx. 57g, Push button transmitter/approx. 31g Not waterproof. Accessories: 1 mounting screw (Φ3.5×25mm), 1 sleeve (Φ6.3×24mm), 1 double-sided tape (width 25mm×height 40mm), 1 belt hook