Ultrasone Performance 840 S-Logic Plus Surround Sound Headphones Recording Accessories To ensure that the proper

To ensure that the proper tip opening is obtained without using a wire

@60dB gain 600ohms source

35" Exterior Width: 7

which allows you to mount an additional mic -- perfect for making an acoustic instrument

Ultrasone Performance 840 S-Logic Plus Surround Sound Headphones Recording Accessories To ensure that the properConcentrate on the music during your next listening session with these Ultrasone Performance Series 840 ULR PERF840 over the ear headphones, which utilize a 40mm PET sound transducer for quality reproduction of your favorite music with a frequency response of 10Hz 25kHz. S Logic PLUS technology Natural Surround Sound ULE technology MU metal shielding Reduced radiation according to ULE specifications