Amazon Fire TV refers to two generations of digital media players and microconsoles developed by Amazon.com. It is a small network appliance and entertainment device designed to stream digital audio/video content to a high-definition television. The device also allows users to play video games with the included remote, via a mobile app, or with an optional game controller. The first-generation device featured 2 GB of RAM, MIMO dual-band Wi-Fi, and a Bluetooth remote control with a microphone for voice search. It supported 1080p streaming and Dolby Digital Plus 7.1 surround sound but was dependent on internet bandwidth of the user. Unveiled on April 2, 2014, the Amazon Fire TV (1st Generation) was made available for purchase in the US the same day for US$99 and was launched with a video game called Sev Zero. In 2015, the Amazon Fire TV (2nd Generation) was released with improved processor speed and 4K UHD support. Amazon Fire TV is also available in the United Kingdom, Germany, and Japan.