My FiiO E7 USB DAC/Amp is now for sale. Comes with everything included including case, rubber band strap, 3.5mm male to 3.5mm male headphone cord, box and instructions. DOES NOT work as a standalone DAC with an L7 adapter. I have tried two, and both turn if off once connected. I have no idea about it working in an E7/E9 combo. I'd rather get a dedicated DAC. If you want pics, ask. No scratches or anything except the screen protector that came with it that I never replaced. Willing to trade for another dedicated DAC for around the same price such as an HRT Music Streamer II or something.