[Upgraded Version] Alien 5 Bone Conduction Glasses Bluetooth 4.1 Headphones Polarized Sunglasses Myopia Waterproof Wireless Headset Hearing Aid for iPhone HTC LG Samsung Matted Black (Frame+Mold Lens) Marshall Receiver range: 20M

Receiver range: 20M

Details: The Hamilton CD/USB/MP3 Listening Centers provides everything you need in a listening center built on the latest HACX-205 Top-Loading Classroom CD/USB/MP3 player

Stanby time: about 400 hours

★ Advanced ANC of FF+FB Mode

[Upgraded Version] Alien 5 Bone Conduction Glasses Bluetooth 4.1 Headphones Polarized Sunglasses Myopia Waterproof Wireless Headset Hearing Aid for iPhone HTC LG Samsung Matted Black (Frame+Mold Lens) Marshall Receiver range: 20MBrand: HORIZON OUTDOOR Color: Frame+Mold Lenses Features: UPGRADED BONE CONDUCTION SPEAKER: Upgraded bone conduction speaker, with the exclusive soundproof cavity design, reduced the sound leakage by 87%. CAN BE USED WITH PRESCRIPTION LENSES: The lens can be replaced very easily, and we provide free transparent lens mold for Myopia&Older. OPEN EAR DESIGN GUARANTEE YOUR SAFETY AT ANYWHERE: You can easily listen to music and you aslo can hear the sound