1,It can connect any cell phone or MP3 player or PDA with standard 3.5mm jack. 2,3.5mm plug on each end. 3,Chrome-finished plugs and nickel-plated contacts. 4,The coiled cable is expandable, which can be stretched to about 2m. 5,The shell of the connector is made of ABS chrome, and the plug is made of nickel plug,which ensures smooth signal transportation. Description: 1. It can connect any cell phone or MP3 player or PDA with standard 3.5mm jack. 2. 3.5mm plug on each end. 3. Chrome-finished plugs and nickel-plated contacts. 4. The coiled cable is expandable, which can be stretched to about 2m. 5. The shell of the connector is made of ABS chrome, and the plug is made of nickel plug,which ensures smooth signal transportation. 6. The body of the cable is made of high strength elastic PVC insulation material, durable, safe and moreeffective in signal transportation. Specification: Length: About 50cm (expandable-max length: About 2m) Color: Red or Black or Blue Original Box:No (NOTE:The colors of the pictures are just for reference! Please take real product as standard, thanks  for your understanding!) Attention: The up and bottom buttons are just for decoration, no real function. Size may be slight inaccuracy due to different batches of the products, or hand measurement Color may be little different due to monitors. Please take real product as standard, thanks for your understanding! Package Includes: 1PCS x 3.5mm Male to Male Audio Cable(Just a Cable,Cellphone and any players are not included)