Headset Cello Epro Spesifikasi : • Frequency Response 20 – 21000 Hz • Impedance 32 Ohm • Sound Pressure Level 115dB System Requirement support Windows 2000/XP/Vista/7/Mac OS/Linux Features: • 40mm speaker driver delivers sound without distortion • Closed type design blocks out ambient noise • Enjoy best-in-class performance and optimum sound quality • High performance speakers deliver booming sound and power • Ear cushions improve wearing comfort and bass response • Ultra-soft headband cushions for supreme wearing comfort • Flat when folded, it fits easily in your travel bag • 3.5mm adaptor connects almost all types of audio devices • A 2m long cable that is ideal for outdoor use • Dual folding method for easy storage & extra portability