Closed-type dynamic headphones with 50mm drivers that were optimized for personal monitoring while playing the Roland V-Drums, offering high-quality sound with extended frequency response and wide dynamic range. They deliver accurate, punchy sound that inspires, from the powerful lows of the bass drum to the shimmering highs of cymbals. These unique headphones are also a great fit with other Roland electronic percussion instruments, including the OCTAPAD SPD-30, SPD-SX, and HandSonic HPD-20. Soft cushion on head strap provides a comfortable and secure fit that stays in place while drumming, while the closed-back, circumaural design fits around the ears for excellent isolation from outside sounds. Long (2.5 m) straight cord is provided for connection convenience and playing comfort, terminated with a gold-plated 3.5mm stereo mini plug with included 6.35mm threaded adapter. The headphones can be folded down into a compact size for easy storage and transport. Sensitivity: 103 dB/mW. Impedance: 32 Ohm. Frequency response: 10 Hz-22 kHz. Weight: 285 g.