FunctionCall, Cancel, Pay, Order Function Key ideal for guest use, especially in restaurant environments; helps understand customer needs; watch pager improves working efficiency effectively. Easy to Use: The call button is designed to be user-friendly, making it simple for anyone to operate. Compact Design: Small size, lightweight, and round shape provide a comfortable grip and easy portability. Stable Signal: Calling pagers use a higher working frequency with learning code technology; compared to fixed code types, signal interference is minimized for improved stability. Built-in CR2016 Button Battery: The pager includes two CR2016 button batteries. Double Sided Tape Design: Equipped with double-sided tape, the pager can be securely attached to tables or walls, reducing the risk of loss. ABS Material: Watch pager made from high-quality ABS material; durable and offers better resistance to oil, suitable for restaurant or food truck use. Specifications: 4 keys, Color: Black, Material: ABS. Package Contents: 5 x Wireless Pager. Note: Light reflection and different displays may cause slight color variation between the image and actual item. Measurement allowance: +/- 1-3 cm.