1. Automatically Updates When Changed: Retailers use Electronic Shelf Label (ESL) systems to display product prices on shelves. Each time the price is changed from the central control server, the product price is automatically updated2. Multi-Channel Update: With a few clicks from the remote server, the e-price tag can automatically update thousands of videos on multiple channels at the same time.3. No need for paper tags: There is no need for paper tags, and no need to deploy cumbersome staff to manually replace price tags on each shelf.4. No physical labeling: With the electronic price tag, employees in stores, supermarkets, schools and hospitals do not have to physically re-label the labels.5. Small shape: ESL is small in size, easy to carry and install, and the battery can be replaced, which is convenient to use. Specification: Item Type: Electronic Price Tag.Material: ABSSubject: Electronic price tagConnection method: BluetoothBattery Type: 2 button batteries in series (integrated)Battery model: CR2450Battery Rated Capacity: 1240 mAhFunction:1. Efficiency : 30 minutes for less than 20,000 units2. Success rate: 3. Transmission technology: 433 MHz radio frequency. Non-interference capability of Wi-Fi devices such as mobile phones.4. Transmission Range: The coverage range is approx. 30~50 meters / 98.4~164 feet.5. Display model: support dot image display.6. Operating Temperature: Normal Label 0?~40?, Refrigeration Environment Label -25?~15?.7. Communication and interaction: Dual-wave communication, real-time interaction.8. Product standby time: 5 years, battery can be replaced.9. Home system: support text, Excel, spreadsheet, intermediate data guide, user-defined development, etc. Package List: 1 x Electronic Price Tag Note: ESL Bluetooth version does not only supports Android phones. Note: The data is manual measurement, please allow 1-41cm error, due to differences between light and screen, there will be a certain color difference, the specific received in nature prevail.