Minimum order quantity, pricing and customization depend on the selected model and project scope. Confirm applicable terms in a written quotation.
4.2" BLE ESL for main display areas and 3C retail
Manage label content from a compatible phone or tablet
400×300 resolution for product images, specifications and pricing
4-color BWRY for promotional displays and sale tags
Low-power E-Ink with replaceable coin-cell battery design
Final protection rating, availability and accessories confirmed by model
Suitable for phone, smartwatch, smart-home and small retail displays
| Display Technology | E-Ink (Electronic Paper) |
| Screen Size | 4.2" |
| Resolution | 400×300 pixels |
| Display Colors | Black / White / Red / Yellow (4-color) |
| Communication | Bluetooth Low Energy (BLE) |
| Basic workflow | Compatible phone or tablet; no access point required for the basic local workflow |
| Operating Temperature | 0°C to 50°C; confirm the latest model datasheet |
| Battery | Replaceable CR2450 coin-cell configuration; final quantity depends on model |
| Battery Life | Multi-year under normal retail use; depends on usage and update frequency |
| Update behavior | Confirm by app, model and project environment |
| Protection rating | Model-specific; confirm before ordering |
* Specifications subject to change without notice. Contact us for the latest datasheet.
BLE-420BWRY Electronic Shelf Label (Bluetooth) — a 4.2" E-Ink electronic shelf label with a Black / White / Red / Yellow (4-color) display. The BLE series is designed for a compatible phone or tablet workflow and does not require an access point for the basic local operation. Its larger format suits main display areas, electronics and promotional product cards.
E-Ink is designed for low-power operation and the battery is replaceable. Actual battery life, environmental protection and update behavior depend on the final model, app and usage conditions, so confirm the latest product data before ordering.
Tocvue also offers an SDR / 2.4GHz architecture for projects that need centralized management, broader deployment planning or a future POS/ERP workflow. Choose the architecture after reviewing the store layout, label quantity, update pattern and integration requirements.
Tocvue ESL product information is listed by model. Contact us to discuss pricing and project requirements.
The BLE-420BWRY is a 4.2-inch Bluetooth electronic shelf label from Tocvue for main display areas, electronics retail and small-store pilots. Its 400×300 4-color BWRY E-Ink display provides space for prices, promotions and product information. A compatible phone or tablet can be used for the basic local workflow without an access point; confirm the final app behavior, model configuration and project requirements before ordering.
BLE-420BWRY uses Bluetooth Low Energy and is designed for a compatible phone or tablet workflow. No access point is required for the basic local operation. Confirm the final app, phone compatibility and label-binding steps during sample testing.
4.2-inch inch E-Ink screen displays prices in Black, White, Red, and Yellow. Red and yellow highlighting makes promotions and clearance prices instantly visible to shoppers, driving attention to featured items without paper waste.
The paper-like display keeps content visible without a backlight. The replaceable coin-cell configuration supports a low-maintenance workflow; final battery life depends on the model and usage conditions.
Update selected label content through the compatible mobile workflow instead of repeatedly printing and replacing paper. Update sequence and batch behavior should be confirmed for the project.
The 4.2-inch format provides more room for main display areas, electronics and promotional product cards. Confirm mounting accessories and environmental protection for the intended installation.
Share the model, quantity and destination to confirm pricing, sample availability and project requirements.
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