Compatible Models: This replacement remote control is compatible with DR.J Professional Portable Mini Projector P68, PJ0511, PJ0911, DR.Q, HI-04, AK-40, AK-30, AK-50. Lifetime Warranty & Exceptional Service: This product comes with a free 6-month warranty and return option. If you encounter any quality issues, please . Our dedicated team is available to assist you promptly. We stand firmly behind our customers. ABS Material: This smart remote is made of high-quality ABS material for enhanced durability. The replacement remote weighs only 0.10 kg (0.22 lb), is wear-resistant, and durable. Remote Distance: Infrared technology provides a strong signal up to 12 meters (40 feet) within a 180-degree range. This remote does not have voice functionality. No Programming Required: Simply insert batteries for immediate use. Batteries are not included (requires 2 x 1.5V AAA batteries).