For a limited time, we will include a mystery-free gift in consumer electronics worth £15 (in manufacturer RRP/SRP value) with this product, subject to availability and provided offer is at full retail price or no other offer involved. Please note this gift cannot be exchanged with any other product or refunded. Professional drivers - clear sound in the studio and beyond Our K52 headphones deliver authoritative, extended low-frequency response that gives definition to kick drums and bass guitars. At the same time, the detail yet precisely balanced high-frequency response reveals the nuance in vocals, guitars and acoustic instruments. Our generous 40mm drivers deliver high sensitivity for powerful output, plus an extended frequency response that reveals every detail. The K52s also feature a low-impedance design for compatibility with a broad range of playback devices, from professional studio gear to portable music players. Closed-back design - get lost in your sound The K52 headphones' closed-back design eliminates audio leakage and delivers sound to your ears only. You won't hear the drummer drop his sticks in the middle of tracking - and the mic won't pick up the sound of the click track in your headphones. This exceptional level of audio isolation is due to a new acoustic chamber, which sits between the ear cup and the hinge that connects to the headband. Our innovative design gives you the freedom to move your head in any direction, without letting sound in or out.