1. por Blue MSX7Pro These headphones have an innovative design for any type of stereo player and they are especially suitable for MP3 players CD players and games Microphone Fixation Sound Frequency response KHz Shipping Information P Contains 1 Intermediate box Export carton Pallet 230 Technical Information Technical specifications Frequency Range 20 20 000Hz Sensitivity 102dB Impedance 32 Ohm Length of cord 2 3 m Maximum power 300 mW Jack 3 5 mm Package contents Blue MSX7pro Warranty card System Requirements Stereo sound card