1. Automatic Updates: Retailers use Electronic Shelf Label (ESL) systems to display product prices on shelves. Whenever the price is changed from the central control server, the product price is automatically updated. 2. Multi-Channel Updates: With just a few clicks from the remote server, the electronic price tag can automatically update thousands of videos on multiple channels simultaneously. 3. No Paper Labels Needed: There is no need for paper labels, and no need to deploy cumbersome personnel 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 need to physically re-label the labels. 5. Small Form Factor: The ESL is small in size, easy to carry and install, and the battery can be replaced, making it convenient to use. <b>Specification:</b> Item Type: Electronic Price Tag Material: ABS Subject: Electronic Price Tag Connection Method: Bluetooth Battery Type: 2 button cell batteries in series (built-in) Battery Model: CR2450 Rated Battery Capacity: 1240 mAh Function: 1. Efficiency: 30 minutes for less than 20,000 units 2. Success Rate: 100% 3. Transmission Technology: 433 MHz radio frequency. No interference risk from Wi-Fi devices such as mobile phones. 4. Transmission Range: The coverage area is about 30 ~ 50 meters / 98.4 ~ 164 feet. 5. Display Model: Supports dot matrix display. 6. Operating Temperature: normal label 0℃~40℃, cold environment label -25℃~15℃. 7. Communication and Interaction: Double wave communication, real-time interaction. 8. Product Standby Time: 5 years, the battery can be replaced. 9. Home System: support for text, Excel, spreadsheets, intermediate data guide, user-defined development, etc. <b>Package List:</b> 1 x Electronic Price Tag <b>Note:</b> The Bluetooth ESL version does not only support Android phones.