Lightweight and comfortable earphones for everyday use, so you can enjoy your favorite music without any discomfort. Their oval-shaped housing makes them even more elegant and easy to carry with you during the day. Material: Recycled ABS (100% rABS), Wireless transmission: BT v5.3 Input: USB-C Capacity: earbuds 25 mAh, charging case 300 mAh Approximate battery life: earbuds 3 hours, combined 12 hours Frequency response: 20-20KHz Impedance: 32Ω Includes: USB-A / USB-C cable Packaging: kraft paper