Main Features: The glasses are 5.0 stereo Bluetooth headphones that can be used with Android and ios phones. This Bluetooth headset supports phone calls, listening to music, calling voice number, etc., and can also be connected to a computer through Bluetooth as a headset. Glasses with high-tech nylon frame, strong flexibility, wear and durable. Lens upturning design, convenient and practical, the lens itself wear-resistant, suitable for outdoor sports use. The weight of the glasses is about 60g, and it is not uncomfortable to wear for a long time. Hydraulic headphone pull rod structure, completely get rid of headphone wire interference, let you enjoy 360° surround sound. The earphone is equipped with a moving coil unit to widen the sound field, and the bass is surging and powerful, and the treble is extended and melodious. Bluetooth connection method: You need to hold down the button 3-4s with the Bluetooth logo, see the two colors of the indicator light alternately flash when the Bluetooth device is turned on, and then use the mobile phone to link with the Bluetooth glasses. Specification: Material: Nylon Style:Black,Blue lens,Yellow lens,White lens Dimensions: Refer to the dimensions drawing Transmission range: 10m Usage: Head wear Track: Stereo Charging time: 2-2.5 hours Battery life: 8 hours (talking & headphones), 4-6 hours (listening to music) Battery: 200MAH built-in battery Package Included: 1pc* glasses Note: Please allow 1-2cm differences due to manual measurement. Due to the difference between different monitors,the picture may not reflect the actual color of the item. Thank you! No Retail Box,Packing Safely in Bubble Bag.