MDR-HW300K Digital Wireless Headphones Hear uncompressed audio wirelessly with the MDR-HW300K headphone system. The large 40mm driver units with neodymium magnets deliver broad, balanced, and accurate sound for an exceptional wireless listening experience. The built-in, rechargeable Lithium-Ion batteries provides up to 10 hours of continuous playback1 or enjoy the convenience of passive mode without charging the battery using the included stereo connection cable. Features High quality signal and sound The MDR-HW300K wireless headphone system transmits an uncompressed 2.4 GHz signal to reduce unwanted interference while the real-time automatic channel tuning prevents signal degradation. These features allow the system to deliver high quality sound without outside interference. Enjoy broad frequency response The large 40mm driver units with neodymium magnets deliver broad, balanced, and accurate sound for an exceptional wireless listening experience. You can enjoy 20 - 22,000 Hz frequency response when listening wirelessly or extend the bass frequency response even further from 10 – 22,000 Hz when connected using the supplied audio cable. Long battery life The built-in, rechargeable Lithium-Ion battery provides up to 10 hours of continuous playback on a full charge.1 The MDRHW300K headphones can even be used while charging using the included micro-USB cable, full charging capacity takes approximately 3 hours.1 Passive listening mode Enjoy the convenience of passive mode, enabling you to use the headphones in a conventional corded manner with the included stereo cable. This ensures you can continue your listening without the need to charge the battery. Compact signal transmitter The MDR-HW300K includes a compact signal transmitter with power indicator and an easy to use 1/8” stereo input cable for your convenience. Designed for comfort The MDR-HW300K wireless headphones not only sound great, but they are also extremely comfortable and stylish thanks to their light-weight, adjustable padded headband and swivel style ear-cup design. Specifications Audio Driver Unit 40 mm Closed/Dynamic Effective Range Approximately 100 feet (30 m) maximum¹ Frequency Response 10 - 22,000 Hz Power Handling Capacity 1000 mW (IEC: when using supplied cord) Transmitter 2.406 GHz - 2.478 GHz Volume Control Yes (Button) General Design Headband: Around the ear (Circum-aural) Headband Padded, Adjustable w/Swivel Ear-cups Magnet Neodymium Plug Detachable L-shaped stereo connecting cord Power On/Off ON/OFF switch on ear-cup Type of Use Home: Wireless & Passive w/cord Hardware Communication Wireless Digital 2.4GHz Radio Frequency Headphone Type Closed, Dynamic Inputs and Outputs Audio In Analog Stereo Input mini jack (x1) Power Battery Charging (Approx) Approximately 3 hours Battery Indicator Power-on LED indicator Battery Life (Approx) Approximately 10 hours1 Battery Type Built-in Lithium-Ion rechargeable battery Input Power AC Power Adaptor (5V) Power Requirements Rechargeable, built-in Lithium-Ion battery (supplied) Audio Tuning Auto Tuningon headphones Weights and Measurements Cord Length (Approx.) Micro-USB: 19.75" (50 cm) Stereo Connection Cable: 59" (1.5 m) Dimensions (Approx.) Transmitter: 3 x 0.75 x 3 in. (75 x 18 x 75 mm) Weight (Approx.) Headphones: Approximately 6.7 oz. (190 grams) Including supplied battery Transmitter: Approximately 2.5 oz. (70 grams) Accessories Supplied Accessories Wireless Stereo transmitter: TMR-HW300 (1) Wireless Stereo Headphones: MDR-HW300 (1) 5V AC adapter (1) Micro-USB cable: approx. 19.75"/50 cm. (1) Connecting Cable approx. 59"/1.5 m (1) Operating Instruction Manual (1) Warranty Card (1) 1. Actual performance varies based on settings, environmental conditions, and usage. © 2014 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony and the Sony logo are trademarks of Sony Corporation. All other trademarks are trademarks of their respective owners. Features and specifications are subject to change without notice. Updated: March 19, 2014