Black 16-Piece Pager Keeping Distance Restaurant Pager System with Vibration Signal and Flashing Light for Cafe Kitchen 100-240V Characteristic: 1. Stability and heat dissipation: High-performance coding and decoding circuit reducing noise, fast heat dissipation and high stability. 2. 3. 4. Good performance: The communication distance is about 200 meters in the open distance, the alarm mode will be accompanied by vibration, beep and flashing light. 5. Specification: Item Type: Distance Keeping Pagers Weight: 1430 g / 50,44 oz Material: ABS acrylic Base size: approx. 23x15,7x3,5 cm / 9,1x6,2x1,4 inch Pager size: approx. 10,5 x 5 x 1,2 cm / 4,1 x 2,0 x 0,5 inches Black color Battery: 200 mAh lithium-ion battery (receiver supplied with built-in battery) Suitable frequency band: 315 MHz Power Usage: DC12V Quantity: 16 pcs Hint mode: vibration signal, flashing light Suitable for: restaurants, bars, cafes and other places where you need to stand in line List of packages: 1 x Base 16 x receiver 1 x Manual 1 x Plug 16 x Film 16 x digital paper