Ergonomic and mini design:q12 bluetooth headphones with ergonomic redesign, this in ear headphones can fit and stay secured in ear canal even with intense exercise.three sizes of ear caps or this wireless headphones are available to meet the needs of different people.in super mini size design,it's very small and lightweight, easy to carry. 36 hours playtime and fast charge: once fully charge for this studio headphones gives you a full 6 hours of listening, while the charging case extends that to 36 hours. when you're in a rush, simply charge this wireless earbuds for 10 minutes you can get 1 hour of playtime. only takes 1 hours to be fully charged. IPX7 waterproof: q12 bluetooth earbuds designed with nano coating,it can eliminate the harmful effects of splashing water droplets from different directions for this in ear headphones.this waterproof headphones can fend off sweat and it is a good choice for strenuous workouts and all weather conditions. Incredible sound with powerful bass: q12 wireless headphones with a 10mm graphene diaphragm and high fidelity dynamic drivers,tis bluetooth headset is reproduced with a 15% larger frequency bandwidth for clear treble and 2× more bass than other wireless headset. bassup technology enhances bass by up to 43% and the audio offers lossless transmission between your device and the wireless earbuds. Package contents : Tiksounds q12 wireless earphone, charging earphone case, 3 sizes earplugs for true wireless earbuds, usb cable, activity card, and friendly customer service.