Trac10321 Indoor Navigation BLE Beacon developed by that is mainly used for push notification and indoor navigation. With adequate development and platforms, trac10321 indoor navigation ble beacon can provide a complete planning view from start to finish in exhibitions, muse- ums, libraries, commercial complexes, etc. Trac10321 indoor navigation ble beacon has a broad- cast distance of up to 150 meters and is equipped with a large battery that can be replaced. Under the low-power broadcast, the service life is up to 10 years while being maintenance-free.