Bluedio continues the legend of its world first 8 driver units headset, launched the R2-WH wired headset. The 8 driver units is composed of 2 50mm 50? woofer and 6 32? 3D speakers, bring you balance and clear sound quality, it''s a choice of professional user. Without DSP(Digital Signal Processing), Bluedio strove to transmit Hi-Fi music in R2-WH, revert to most original music. Independent bass and tweeter speaker of R2-WH composed of 5Hz-25kHz wide range frequency response, created wide range frequency response, revealed the power of R2-WH. Features Bluedio 8 driver units: 2 50mm 50? woofer and 6 32? 3D speakers composed of 8 driver units, represent strong bass and clear sound quality, revert original music to you. High fidelity monitoring headset: R2-WH strove to transmits high fidelity music, without DSP, sound source playing through the speaker directly, 0.2% THD only, revert to most original Hi-Fi music no matter play on FLAC, WAV or APE format, suitable for professional user. Wide range frequency response: Independent bass and tweeter speakers of Bluedio R2-WH composed to 5Hz-25kHz wide range frequency response, speaker sensitivity up to 114dB, created wide range frequency response. Exposure to the scene by PPS8 effect: The unique PPS8 effect of Bluedio, to simulate 5.1 channels surround sound effect, no matter listening to music or watching movie, PPS8 will let you feel like exposure to the scene. there is a extension cable for computer, let you use R2-WH to make IP call and video chat easily Convenience: With adjustable and foldable slider of R2-WH, plus light weighted, it is easy to bring. Specifications Distortion: 0.2% (THD) Maximum Output Power: 50mW Input Power: 30mW Speaker Sensitivity: 114dB(±3dB) Frequency Response: 5Hz-25kHz Accessories Bluedio R2-WH Wired Headset 1pc, 1.5m(3.5mm plug)Audio Cable(for Apple and Samsung devices) 1pc, 1.5m Audio Cable 1pc, Pouch 1pc, User Guide 1pc