PICKSMART PE21R V4 2.1 inch TFT Screen Display Bluetooth Electronic Price Tags Digital Store Shelf Labels •Bluetooth Connection: Provding fast and stable connection •Environmentally Friendly Design: Adopting paperless technology,it is very environmentally friendly because it does not use ink and paper. After you set the data you want on your phone,the price of the product will be updated automatically,which is very fast and convenient •Easy Setting: It can modify the content you want in the mobile APP,and then display it on the electronic price label •Waterproof Function: It can withstand daily water splash,rain or dust,more durable to use •Wide Application: Widely used in convenience stores,supermarkets,shopping malls,fruit stores,restaurants,factory warehouses,etc. You can choose different labels according to your business •Specification: •Display technology: E-ink screen •Display area: 23.71(H)* 48.55(V) •Operating temperature: 0-50℃ •Battery capacity: 1200mAh (CR2450*2) •Battery life: 3-5 years •Screen size: 2.1 inch •Supported content formats: text/image/QR code/barcode Package included: •1 x Bluetooth Electronic Price Tag •Other things not included