Syllable G15 Cordless Headphones Wireless Headset Big Earphone Foldable Bluetooth Earpiece Noise Cancelling Retro Headphones 10 m 393.7 inBluetooth headset soundtrack music. Rechargeable lithium battery. Fashion decency, chic, simple and elegant, rich color. Protein leather + pearl ear comfort and soundproofing. Hi-fi dynamic speaker. High toughness, anti-scratch green plastic case. Intelligent switching function, listen to music, answer the phone. Foldable design, easy to carry. Driver: 40 mm1.57 in. Bluetooth distance: 10 meters without obstacles. Bluetooth version: V2.1+EDR.