Features: A new audio experience, listen to books/podcasts without earbuds while biking or walking, maintain awareness of the surrounding Support AAC code music, AAC dual speakers. This smart audio glasses are also blue light blockingand polarized to keep you safe and comfortable. BT5.0 connect, providing clearer sound and more stable signal.and upto 6 hours of listening time. Touch control, simply touch to take the phone call, free your hand. Made with quality material, universal size and light weight, comfortable to wear. You can replace the lenses with prescription lenses yourself. Specifications: Model: KY Material: PC BT Protocols: 5.0 Batterys: 100mAh Charge Method:magnetics charge Battery Life: up to 6 hours of listening time Charge Time: 1 hour Stereo Sound: Yes Phone Assistant: Yes Sweat and Dust Proof: IP5 FLASH Memory: 16MB Compatible System:IOS, Android Major Function:bt calls, music, blue light blocking lens, polarized sunlens, rx lens, AAC code music... Package Weight: 145g/5.11oz Package Size: 180*75*60mm/7.09*2.95*2.36in Note: There are 2 pairs of lens, 1 pair ofBlue Light Blocking Lens and 1 pair ofPolarized Lens, but ONLY 1 pair of Eyeglasses Frame. You can replace the lenses freely yourself. Packing List 1*Audio Glasses 1*Blue Light Blocking Lens 1*Polarized Lens 1*Charge Cable 1*Cleaning Cloth 1*Glasses Case 1*User Manual