Features:1. Improve work efficiencyand enhances the restaurant'for image;Minimize crowds in waiting line and Reduce staff chaos ;Notify people faste and Reduce staff chaos & improve ambience.2.20 channels base and 20 pieces of pagers help avoid the waiting of the client in the long queue to a great extent.3.1km Long Connection Distance. A built-in antenna enables pager to work normally within 1km from the base4.3 Indication Modes. Adopting 3 indication modes of vibration, bee cue, and vibration plus bee cue to make it suitable for different situations.5.Widely used in various commercial situations such as restaurant, cafe, milk tea shop and etc.Specifications:Material: ABSColor: BlackPlug Type: AU Plug; EU Plug; UK Plug; US PlugChannel: 20 channelsIndication Mode: Vibration, bee cue, vibration plus bee cueWorking Voltage: DC5V/5AWorking Frequency: 433.92MHzStandby Current: 245mATransmitting Current: 10030mAConnection Distance: Within 1kmInput Voltage: 100-240VSize: Approx. 15x30x3.3cm/5.91x11.81x1.3inWeight: Approx. 1600gNote:1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youPackage includes:1 Piece 20 Channels Main Engine20 Pieces Receivers1 Piece Power Adapter1 Piece Antenna