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Bluetooth ESL (BLE Series)

BLE-370BWRY

3.7" Black / White / Red / Yellow (4-color) Bluetooth 5.0 (BLE)
  • 3.7" E-Ink display — 416×240 resolution
  • Black / White / Red / Yellow (4-color) 4-color display for eye-catching pricing
  • Bluetooth 5.0 (BLE)
  • No gateway needed — smartphone app control
  • 5+ years battery life
  • IP54 rated — dust & splash resistant
  • Ideal for: Larger retail displays, appliance showrooms, home goods, sporting goods

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MOQ flexible. Bulk orders get additional discounts. OEM branding available.

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3.7" widescreen BLE ESL — gateway-free, zero infrastructure cost

Smartphone app for instant updates — update prices from anywhere in store

4-color BWRY for compelling promotional and end-cap style displays

416×240 resolution — enough for product descriptions and images

5+ year battery — ideal for large product display installations

IP54 rated — reliable in showrooms and home goods retail environments

Perfect for appliance showrooms, sporting goods, and home improvement stores

Technical Specifications
Display TechnologyE-Ink (Electronic Paper)
Screen Size3.7"
Resolution416×240 pixels
Display ColorsBlack / White / Red / Yellow (4-color)
CommunicationBluetooth 5.0 (BLE)
Gateway RequiredNo — smartphone app control
App Range~10 meters from smartphone
Battery Life5+ years (typical usage)
Operating Temperature-10°C to +60°C
IP RatingIP54 (Dust & Splash Resistant)
MaterialABS plastic housing

* Specifications subject to change without notice. Contact us for the latest datasheet.

BLE-370BWRY Electronic Shelf Label (Bluetooth) — 3.7" E-Ink electronic shelf label (ESL) featuring Black / White / Red / Yellow (4-color) 4-color display. Powered by Bluetooth 5.0 (BLE). No gateway needed — smartphone app control. Battery life up to 5+ years. IP54 rated for dust and splash resistance. Operating temperature: -10°C to +60°C. Ideal for Larger retail displays, appliance showrooms, home goods, sporting goods.

Tocvue ESL labels use ultra-low power E-Ink (electronic paper) technology — the same display used in Kindle e-readers. The screen only draws power when the content changes, resulting in a 5+ year battery life. No backlight needed — paper-like readability from any angle, even in direct sunlight.

The BLE-370BWRY is available in two connectivity versions: SLIM Series (2.4GHz) requiring the CEDAR V3 AP gateway for centralized management of hundreds of tags, and BLE Series (Bluetooth 5.0) requiring no gateway — controlled directly from a smartphone app. Choose the version that best matches your store size and deployment requirements.

Factory-direct from Tocvue — professional ESL manufacturer since 2014. Contact us for wholesale pricing, sample units, and OEM customization.

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