1 pcs hdmi male to 2 hdmi female 1 in 2 out splitter cable & 1 pcs 13s 48v 20a li-ion battery protection board this hdmi splitter cable is perfect for connecting one hdmi compatible device (xbox, blueray, dvd players, ps3) to two visual output devises.it takes a signal from one device such as a bluray player and will direct to one of two output devices that are plugged into it. only 1 output device should be active at any time unless both tvs are of the same size, then both tv will show the images when connected. this product can act as a signal router, you may have a tv in two separate rooms, you can have a tv on in one room and when you want to switch room and keep watching the tv, you just need to switch one tv off and switch the other tv on, and then the signal is routed to the tv in the other room. suitable for high definition image resolutions such as 720p, 1080i, and 1080p operate it as following steps: connect your devices with this splitter cable.turn the signal source on.turn the first display on first and wait till it works properly.then turn the second display on and enjoy it. slim and compact, easy to storage and carry 1 hdmi male to 2 hdmi female splitter cable.support 480i, 480p, 720p, 1080i, 1080p.gold_plated connectors for better signal transfer.allow to connect hdmi devices that have build-in hdmi ports, like hdtv, playstation 3, upconvertor dvd player, lcd monitor and projectors. HDMI Male to 2 HDMI Female 1 in 2 out Splitter Cable: Color: Black Material: Wire material Length: 11.8 inch (30 cm) 13S 48V 20A Li-ion Battery Protection Board: Continuous discharging current:20A Instantaneous diacharge current:100A Charging voltage:54.6V Charging current:20A(Max.) Over-charge detect:4.28±0.05V Protect delay:100ms Color: Silver + Green Material: metal + PCB Over-charge release:4.08±0.05V Over-discharge:2.55±0.08V Over-discharge detect delay:50mS Release voltage:2.9±0.1V Detect voltage:150mV Detect delay:15mS Current detect:120±5A Resistance: less t