Adopted premium materials, the wireless headset is durable and firm for you to use for a long time. You can enjoy a better when running, cycling, or doing other sports. And you can totally free up both your hands to do whatever you want such as do sports, work or drive. Features -Material: Plastic & Electronic Components -Size: Approx. 7.4 x 4.7 x 2.2 cm / 2.91 x 1.85 x 0.87 inch -Vocal Tract: Stereo -Operation Method: In-ear -Transmission Range: 15 meters - Easy to use, just connect to your phone once taken out of their charging case. - Authentic sound and powerful bass performance. - Portable and lightweight, easy to carry. - Low-frequency forwarding technology, the signal is stronger and the radiation is lower. - Comfortable in-ear delicate compact, suitable for different ears wear more stable and comfortable. Package list: 1 x Charging Bin 1 x Pair of Earphone 1 x Pair of Earmuff 1 x Specification