DS3604 is a reflective electrophoretic display offering readability and flexibility. The 4.2-inch active area contains 400×300 pixels and has 1-bit Black/White/Red full display capabilities. DS3604 supports displaying up to 150 languages and other modules like pictures or QR codes. Long-capacity batteries and ultra-low power consumption bring a long battery life of up to 5 years. DS3604 enables quickly modifying the displayed content remotely and locally through simple operations and allows remote management in bulk.