Features 1.Bluetooth Headset: Not only a bluetooth glasses, but also a bluetooth headset, in your midday driving or walking can not only block you from the sun can also help you answer the phone. 2.Directional Sound: Smart glasses using directional sound technology, the sound can be placed in a designated location, can effectively reduce the interference of the outside to you, whether it is a phone call or listening to music will not be heard by people other than you. 3.Bluetooth 5.0, Comfortable Wearing: Bluetooth 5.0 wireless transmission, built in battery, wireless playback, high speed and stable connection. wireless bluetooth glasses are stylish and lightweight, solving the problem of long time wearing headphones on the ear. 4.Noise Cancellation: Smart glasses has a built in high sensitivity microphone and is equipped with HD sound quality and CVC6.0 noise cancellation technology. Can eliminate internal and external noise during calls and reduce back sound interference in closed environments, bringing you real HD calls. 5.Easy to Operate: One button to realize the switch on off button, Chinese and English language switching button, adjust the volume key, play the song up or down to adjust the key switch. specificationItem Type: Smart Glasses_x000D_ Material: TR90_x000D_ Bluetooth Version: V5.0_x000D_ Bluetooth Mode: HSP HFP A2DP AVRCP_x000D_ Receiving Range: Approx. 15m/49.2ft_x000D_ Built in Lithium Polymer Battery: 110mAh_x000D_ Charging Time: 2-3H PackageList 1 x Eyeglasses 1 x Wiping Cloth 1 x Instruction Manual 1 x Charging Cable 1 x Storage Bag