... key; 9, mute→system: mute key; 10, volume add→ corresponding system volume and key; 11, volume reduction→corresponding system volume reduced key; How ... RoHS/ UL compliant,such as: remote control for set-top box, TV, DVD, digital photo frame, adapter chargers, Auto-car and ... testing , cosmetic testing. 6. Rough whole product quality management system If you have any question, please feel free to tell ...