When selecting a remote control, the RoHS (Restriction of Hazardous Substances) certification is the primary baseline, ensuring the device is free from lead, mercury, and cadmium. Beyond compliance, you must evaluate the chipset stability and code library comprehensiveness. A high-quality supplier should provide a pre-programmed database that supports over 1,000+ device brands and offers learning functions for future-proofing. Ensure the ABS plastic housing is durable and the silicone buttons are rated for at least 100,000 presses.