RECORD AND CONNECT TO PC: This personal mixer has asoundcard and audio interface to record and connect to PC and it has universal digital audio file compatibility. Can be used by beginners or studio professional applications LOW NOISE DESIGN: This portable console controller mixer has signal output thru headphones. MULTIPLE CONNECTIVITY: to connect CD, Mp3 and players. Specifications Hign-concerned Chemical:none Type:Mixers,Effects Processors,Stage Effect Machine (The product appearance and printed words depending on batch, but this does not affect use) Colour: Black Material: Metal Package Contents: 1 x sound card 1 x line 1 x Chinese and English instruction manual Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.