FiiO Q1 Mark II can be used as a USB DAC for your iPhone, computer, as well as Sony Walkman players. By using a special designed adapter cable, you can connect from the WM-port of your Sony Walkman player to the Q1 Mark II, so that the latter may do ditital decoding duties to add some spice to your music. This special designed adapter cable L27 is available now! With this cable, you can further explore the functions of FiiO hot-selling product Q1 Mark II and the Q5 that may be available soon in December. Check out the introduction of L27 by below pictures or >>Click Here The delivery of L27 to our worldwide agents starts this week. If you are considering about getting one, you can kindly check with local agents (>>Where to Buy) for its availability. If it's not available in your local market, you can kindly buy it at our Aliexpress: >>Click here Best Regards FiiO Electronics Technology Co.,Ltd.