Vamery 5pcs Battery 4.5V Holder Storage Box Case for 3 x 1.5V AA 2A Cell Battery with Wire Leads & ON/OFF Switch & Cover NEWEST 4 IN 1 OUT HDMI SWITCH - This HDMI switch designed with 4 input ports and 1 output port, you can choose the HDMI signal source by the IR remote control, easy to access. ARC & 3.5mm audio interface - Perfectly support ARC function (Audio Return Channel, audio is available from the TOSLINK Output); Supports compressed audio: Dolby, DTS-HD.Perfectly support Blu-ray 2.1 / 3.1 / 4.1 / 5.1 / 6.1 / 7.1 / 8.1 / 9.1 home theater audio RESOLUTION & HDMI V2.0 SUPPORT - Helps reduce clutter of HDMI wires being fed into your HDTVIt can support most of resolutionsuch as HDMI V2.0 Supports [ 4K x 2K@30Hz / Full HD 1080P / Full 3D 1080P / HD audio / HDCP ]./480P / 576P / 720P / 1080P / 1080p 3D / 4K@30Hz; POWERFUL COMPATIBILITY - The switch can compatible with any HDMI device such as Amazon fire TV | Apple TV/ LE TV | PS3/4/5 Vedio Games | Macbook | VCD/DVD Plyer | IP TV/STB | Media Box | Camera | Xbox360 | Xbox one | Huawei Box | MIUI Box | Smart Box | Blue-ray Player Chromecast | PC/Computer | YUV 60Hz | RGB 30Hz | ROKU 4 | Wii U | SAT Receiver | Digital camera | Projector Tivo | Vizio. NOTICE: It is better to connect the HDMI 4/RAC input ports while apply on TV (Also other HDMI input ports works). If there is no sound when connect others HDMI inputs, please restart this HDMI device again.