Superlux HDB-311 in-ear Sport Headphones with Bluetooth

<section class="block type-u cv_black pad_t80"> <div class="side-margin"> <div class="box_type_u"> <dl> <dt class="header3"> <p>For the best listening experience&hellip;HDB311 is designed for lovers toward sports and music which provide ultimate comfortable wearing and listening experience.</p> <p>HDB311 is equipped with 8mm driver to provide extremely flat frequency response and full-range details. Delicate treble and strong bass provide vivid and high-quality music experience even when taking exercise ! Excellent stability when wearing. IPX5 level water-proof to resist sweat and spill water when taking exercise.</p> <p>Features</p> <p>&bull;&nbsp;Cubic Backcup design delivers the bass reflection effect same as the speaker cabinet to provide deeply but clean bass frequency for wide range use.<br />&bull; 8mm diameter driver for hight sound quality.<br />&bull; Standard Bluetooth&reg; specification ver 4.0 for stable connection and no interference by the surrounding.<br />&bull; Includes an in-line remote control with microphone.<br />&bull; Able to cope with vigorous exercise and keep the comfort wearing at the same time.<br />&bull; Furnished with three different sizes of earplugs and ear hooks for every individual to find the best fit.</p> <p>Specifications</p> <p>Type：Dynamic, In-ear<br />Driver：&Oslash;8mm, neodymium<br />Sensitivity：103 dB SPL（1mW）at 1KHz<br />Frequency Response：20-20,000 Hz<br />Rated Impedance：16&Omega;（copper-coated aluminum wire）<br />Cable：0.5 meter<br />Operating Distance：10m（free space）<br />Support：HFP / HSP / A2DP / AVRCP</p> <p>Battery</p> <p>Talk time：up to 6 hrs<br />Music playtime：up to 4 hrs<br />Charging time：around 1.5 hrs</p> </dt> </dl> </div> </div> </section>