Smart Bluetooth Sunglasses Lightweight Sports Running Headphones Glasses Open Ear Speaker with Speaker, 167mm*140mm, BlackOPEN-EAR BLUETOOTH SPEAKER - The smart sunglasses feature an open-ear speaker design that allows you to listen to music, make calls without blocking other sounds around you. Safer when driving, biking, running or walking on the road. Magnetic charging, more convenient. UV400 Polarized Lenses - This makes the audio sunglasses suitable for outdoor activities such as fishing, driving, skiing, sailing, hunting, sunbathing, protecting eyes from harsh sunlight. BLUETOOTH 5.0 CONNECTION - Stable and easy to access your phone and tablet for all Bluetooth enabled devices. Connection is very convenient. Just turn on the smart glasses, connect the bluetooth signal to the smartphone, you can monitor bluetooth for 6-7 hours, standby for 350 hours, charge for 2-3 hours, Hi-Fi stereo speakers. Unique American design, neat and unisex, very comfortable to wear while relaxing and exercising. Flame Material: PC + ABSTransmission distance: 10m Music earphone time: 6-7 hours fully charged Talking earphone time: 8 hours fully charged Battery capacity: 3.7V/ 250mAH Charging time: 2-3 hoursNote: Manual measurement, there may be 1-2cm/1-3g error, which is not a quality problem. Due to different screen displays, there may be a color difference between the real object and the picture.Delivery Quantity: 1