Feature 1 Applicable Situations: Retailers use the ESL system to display product prices on shelves, often used in stores, supermarkets and hospitals, etc. 2 Automatic Update: Whenever the price is changed from the central control server, the product pricing is automatically updated. 3 Simple Operation: Support Bluetooth connection, just click from the remote server to automatically update the electronic shelf price. 4 High Efficiency: No paper labels are required, and no store personnel are required to manually replace the price labels on each shelf. 5 Compact Design: The electronic shelf label is small and compact, easy to carry, and can replace the battery, easy to use.Item Type: Electronic Shelf LabelMaterial: ABSPurpose: Electronic price tagConnection Method: BluetoothBattery Type: Button battery (shipped with built in battery)Battery Model: CR2450Nominal Battery Capacity: 620mAhFunctions: 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 List1 x Electronic Shelf LabelNoteThe Bluetooth version ESL only supports for Android phones.