Compatibility Enhanced: Specifically designed for Linear and for -O- 3 systems, this remote is compatible with 310MHz receivers like for , for -2, for DR3A, and more. It replaces models including DT DTA DT2D DT4A DNT00002A. your old remote matches the 8 dip switch and 310MHz specifications. Advanced Wireless Technology: This upgraded remote offers strength and extended coverage, ensuring reliable operation and enhanced security. Its robust wireless system outperforms older models, providing you with peace of mind and convenience. Durability with Premium Materials: Constructed from high-quality plastic and featuring an advanced chip, this remote is tested rigorously to durability. It's designed to withstand frequent use, making it a more reliable replacement than its predecessors. Colour:Black Material:plastic Package Contents: 3 x garage door remote Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the