Restaurant pager waiter call system with clock call button, blue. Long-range signal reception. The reception range is 30–200 meters and is stable in open areas. (Actual range depends on the environment. Extended range can be achieved with a repeater.) Made of high-quality materials, robust and durable. The user-friendly call button is easy for anyone to operate. Compact design: Thanks to its small size, light weight, and round shape, the pager fits comfortably in the hand and is easy to carry. With calendar display and rechargeable battery. Modulation mode: ASK (AM) Frequency: 433 MHz Operating chip: Learning code Power supply: Button cell Color: Blue Material: Plastic Package contents: 1 watch, 1 charging cable, 10 call buttons Only the above package contents are included; other products are not included. Note: Light reflections and different displays may cause the color of the item pictured to differ slightly from the actual product. The allowable measurement deviation is +/- 1-3 cm.