4K High Dynamic Range (Dolby Vision and HDR10) for stunning picture quality Dolby Digital Plus 7.1 surround sound A10X Fusion chip for ultra-fast graphics and performance Voice search by asking the Siri Remote. Compatibility- Apple TV is compatible with HD and UHD TVs with HDMI. Apple TV is compatible with Bluetooth keyboards View photos and videos from your iPhone and iPad on TV Netflix, iTunes, Hulu, ESPN, and thousands more apps in the App Store*