Feature:1. Multiple Usages: Retailers use electronic shelf labels (ESL) to display product prices on shelves, which can be used in stores, supermarkets, hospitals, etc.2. Automatic Update: Whenever the price is changed from the central control server, the product pricing on the label will be automatically updated.3. Simple Operation: Bluetooth connection, just click from the remote server, the electronic shelf price tag can be automatically updated at the same time.4. Portable Design: The electronic shelf label is small and compact, and the battery can be replaced at any time, which is convenient to use and carry.5. High Efficiency: No paper labels are needed, and there is no need to manually replace the price labels on each shelf, which greatly improves work efficiency.Specification:Item Type: Electronic Shelf LabelMaterial: ABSPurpose: Electronic price tagConnection Method: BluetoothBattery Type: Button battery x 4 (shipped with built in battery)Battery Model: CR2450Nominal Battery Capacity: 2480mAhFunctions: 1. Efficiency: 30 minutes for less than 20000 units2. Success Rate: 100%3. Transmission Technology: 433MHz radio frequency, anti interference ability of WiFi devices such as mobile phones.4. Transmission Range: Coverage range approx. 30-50meter / 98.4-164ft5. Display Template: Support dot matrix image display6. Working Temperature: Normal label 0-40, refrigeration environment label -25-157. Communication And Interaction: Dual wave communication, real time interaction8. Product Standby Time: 5 years, the battery can be replaced9. Docking System: Support text, Excel, tables, intermediate data import, user defined development, etc..Package List:1 x Electronic Shelf LabelNote:The Bluetooth version ESL only supports for Android phones.