Yeastar DS3504 4.2-inch E-Ink Desk Screen

Yeastar DS3504 4.2-inch E-Ink Desk Screen E-Ink Desk Screen DS3504 is a reflective electrophoretic display, which displays desk information and real-time availability. E-Ink Desk Screen provides shortcuts to make and manage desk reservations on-site. Features: Provides at-a-glance desk information and availability. Scan the QR code to make and manage desk reservations on-site. Synchronize desk schedule with Yeastar Workplace web portal to avoid conflicts in desk booking. Technical Specifications: Display: 4.2-inch Black & White & Red E-Ink Screen Resolution: 400 x 300 Pixels Viewing Angle: 180° Data Transmission Technology: LoRaWAN® Frequency Band: CN470/IN865/EU868/RU864/US915/AU915/KR920/AS923-1&2&3&4 Tx Power: 16 dBm (868 MHz) / 22 dBm (915 MHz) / 19 dBm (470 MHz) Sensitivity: 137 dBm Power Supply: 3 × 590mAh CR2450 Lithium Batteries Battery Life: 1.2 Year Ingress Protection: IP30 Material: ABS + PC Dimensions: 99 × 87 × 10.5 mm (3.90 × 3.43 × 0.41 in) Operating Temperature: 0°C to +40°C (0℉ to +104℉) Operating Humidity: 0% to 95% (non-condensing) below 25°C / 77℉