BS19 leven Sweatproof Stereo draadloze sport Bluetooth oordopjes koptelefoon In-ear Headphone Headset met Hands Free Call voor slimme telefoons & iPad & Laptop & Notebook & MP3 of andere Bluetooth Audio Devices(Dark Blue)

<dl class=spec"><dt>Item Size</dt><dd><ul><li>15.4 x 12 x 2 cm</li></ul></dd><dt>Item Weight</dt><dd><ul><li>28 g</li></ul></dd><dt>Model</dt><dd><ul><li>BS19</li></ul></dd><dt>Speaker Diameter</dt><dd><ul><li>15mm</li></ul></dd><dt>Impedance</dt><dd><ul><li>32ohm</li></ul></dd><dt>Frequency Response</dt><dd><ul><li>20Hz-20KHz</li></ul></dd><dt>Transmission Distance</dt><dd><ul><li>Up to 10m</li></ul></dd><dt>External Memory</dt><dd><ul><li>TF card up to 32GB (not included)</li></ul></dd><dt>Power</dt><dd><ul><li>25-30mA</li></ul></dd><dt>Working Voltage</dt><dd><ul><li>3-4.2V</li></ul></dd><dt>Sensitivity</dt><dd><ul><li>-42dB</li></ul></dd></dl>"