The black FiiO X1 2nd Generation Portable High-Resolution Lossless Music Player is a pocket-sized audio player with a built-in Texas Instruments PCM5242 DAC chip and an Intersil ISL28291 chip. The X1 (Gen 2) has an updated touch wheel for advanced control and features dual-mode Bluetooth V4.0, which can send and receive data simultaneously. The player currently supports five lossless audio formats including APE, FLAC, WAV, AIFF, and Apple Lossless, with support for WMA lossless.