Westone Audio B50 Five-Driver True-Fit Earphones with High-Definition MMCX

Product Overview Utilizing five balanced-armature drivers with 3-way passive crossover, the Westone B50 is designed for the music lover who just can’t get enough low-end. By combining Westone's largest low-end balanced-armature driver, with two mid-range, and two high-frequency drivers the B50 creates a sound that is totally immersive, with sonic detail and clarity. Includes B50 Universal-Fit Earphones Westone Bluetooth Cable 5 Pair Patented STAR™ Silicone Tips 5 Pair True-Fit™ Foam Tips Exchangeable Faceplates Deluxe Zippered Carrying Case 2 Year Limited Warranty Features TRUE-FIT® TECHNOLOGY: 60 years of experience designing products for the ear, has resulted in a universal-fit earpiece that is compact, low-profile, lightweight, and extremely comfortable. Westone's proprietary eartips enhance the performance of the B50 by ensuring a great fit and seal, right out of the box. BALANCED-ARMATURE DRIVERS: Westone’s proprietary balanced-armature drivers provide enhanced sonic detail and frequency range that extends well beyond other in-ear solutions. BLUETOOTH CABLE: Full-resolution Bluetooth Cable uses aptX® technology to deliver extraordinary detail, clarity, and a dynamic soundstage that has to be heard to be appreciated. The Westone Bluetooth Cable features; 8 hours of battery life, a 10 meter/ 32 foot range, has a water and dust resistant IPX-4 rating, and features Westone's exclusive MMCX Audio® connectors, which allows the Bluetooth Cable to be used with any custom-fit or univeral-fit earpiece. HIGH-DEFINITION SILVER MMCX® CABLE: Westone's High-Definition Silver MMCX® Cable features four strands of low-resistance, pure-silver plated copper alloy, braided around a center strengthening core. Low resistance silver-plated copper wire improves electrical conductivity, providing extraordinary clarity and Specifications Sensitivity: 118dB SPL @ 1mW Frequency Response: 10 Hz - 20 kHz Impedance: 25 ohms @ 1 kHz Passive Noise Attenuation: 25dB Driver: Five Balanced-Armature Drivers, with 3-way Passive Crossover Cable: High-Definition Silver / Bluetooth Cable Length: 52” (132 cm) / 27.5” (70 cm)