SMPL Door Sensor, Add-On for Alerts System, Monitor your Door/Window/Cabinets/Drawers, Add up to 20 Sensors, Simple to Install, Signal up to 250ft, Live Technical Support auspowers_batchfour Clip on Retractable Wireless EarbudCollar

Clip on Retractable Wireless EarbudCollar clip and flexible pulling design is no kinking and no broken which is in order

power bank etc

Wire harness plugs directly into the car

2FT Additional Length: Help you add 9

SMPL Door Sensor, Add-On for Alerts System, Monitor your Door/Window/Cabinets/Drawers, Add up to 20 Sensors, Simple to Install, Signal up to 250ft, Live Technical Support auspowers_batchfour Clip on Retractable Wireless EarbudCollarSMPL Door Sensor, Add On for Alerts System, Monitor your Door Window Cabinets Drawers, Add up to 20 Sensors, Simple to Install, Signal up to 250ft, Live Technical Support Pairing Sensors to Pagers smpl Alerts Sensors & Pagers purchased in kits are paired to factory settings. To pair smpl Add On Sensors to Pagers, or to adjust Pager volume and or melodies from factory setting when purchased in Kits, follow these three easy steps. 1. Select the Melody