•Automatic on/off. When you open the temples, they automatically connect to your phone's Bluetooth (an initial connection is required). •Touch controls make it easy to manage calls, activate your voice assistant, or control playback of your favorite songs. Just a few taps on its surface are all you need to have everything under control. Plus, once connected, you can remotely control your smartphone's camera shutter and hear route changes if you're using your navigator. •New temples, the spring hinge design allows the temples to be more flexible and adapt to different head shapes. Elastic and self-adaptive head circumference with uniform pressure distribution, at a 45º angle. •Ideal lenses for driving, traveling, exercising, etc. Thanks to their UV protection, they reduce glare and protect your eyes from the sun's rays, improving vision and reducing the risk of damage caused by sun exposure. •Modern looking frame, with precision hinges, facilitating smooth opening and closing, sturdy and durable. In addition, its comfortable nose bridge, without putting pressure on the nose, allows you to wear it for long periods of time without any discomfort. •Includes: smart glasses x1, carrying bag x1, charging cable x1, cleaning cloth x1, instruction manual. Chip: AB5636H Bluetooth: BLE5.4 Transmission distance: up to 10 meters. Voltage: DC5V Current: 50mA*2 Operating Current: 22mA Standby Current: 1mA Speaker: 10mm Sensitivity: 95±3dB Battery: 50x2 mAh Charging Time: About 1 hour Usage time: About 4 hours, talking or listening to music. Standby time: Around 50 hours. IPX4: Protection against sweat and splashes, do not use in environments with steam or condensation, do not submerge, do not use in the shower. It has CE and RoHS certificates. ABS, PC, stainless steel.Measurements in millimeters: Frame height: 50 mm Bridge width: 16 mm Total frame width: 135 mm Each frame width: 57 mm Temple length: 145 mm