Avantree E171 - Aux 3.5Mm Wired Earbuds With Microphone In-Line Volume, Black Product Details [COMPATIBLE DEVICES] Works with devices equipped with a 3.5mm AUX audio jack, including older smartphones, laptops, PCs, and some tablets. Not compatible with Lightning or USB-C ports. [COMFORTABLE SNUG FIT PERFECT FOR WORKOUTS] An ergonomic design with 3 different sizes of silicone ear buds ensures the optimum fit for your ears. The ear hook design gives a secure fit making it perfect companion for running, jogging or the gym. We've carefully crafted these earbuds to deliver a well-balanced sound with solid bass and an emphasis on mids and highs. Note: if you're looking for extra-strong bass you might want to look into larger headphones. [MULTI-FUNCTIONAL IN-LINE CONTROL] The included in-line control can control music play / pause, adjust volume up / down, previous / next track; moreover answer / reject calls, activate voice assistant and call last dialed number. (Note: The built-in volume control does not work on PC, laptop, or iOS MP3 players, and the volume up button does not work on the Pixel 3A and Galaxy A9, S10, and Note 9.) [BUILT-IN MIC FOR CLEAR CALLS] Built-in microphone provides you crystal clear sound during call, whatever for phone call or VOIP call.You can receive calls easily whenever you are at gyms or walking on the street. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.