Lloyd Black Metal Earbuds is the first Metal earbuds in the industry! Be the first to distribute this amazing product! It has deep bass with a crystal clear sound. The solid precise metal builds are a quality you can feel! And it lasts much longer! It is perfect for laser or full-color customization! It has a large, clear imprint area that will make your design pop. The alloy zonic charging case has the top-notch and sleek appearance. You can expect a crisp, clear sound with a good amount of bass making these perfect for listening to music, gaming, or talking on the phone. The earbud design is modeled after mobile device wireless earbuds, making the fit secure and good for daily indoor and outdoor activities. Version: 5.0 Quick auto paring once box opened Alloy zonic charging case Input: Type C port Speaker output: 5mW, 32ohm Speaker drive size: D10mm *2 Battery built-in earpiece: 40mAh *2 Charging station battery: 3.7V 280mAh Frequency Response: 20Hz-20KHz Charging time for earbuds: 1hr Dimension: 52mm*48mm*15mm/2.05" x 1.89" x 0.59" Net weight: 62.5g/2.21oz Material: Alloy zonic Charging time for station: 1.5hours Playing time: 4 hrs (total 15 hrs) Earbuds charging time: 1.5-2 hours Music Playing time: 6-8 hours