Features: Import Polaroid polarized Lenses provide the best protection for eyes in. Effectively prevent ultraviolet rays and harmful blue light. Freely telescoping boom speakers, 270 rotation, freely adjustable and comfortable wearing. Built-in high capacity polymer lithium battery provides 5 hour continual talk time and Bluetooth standby time of 7-10 days. Suitable for various occasions and easy to carry. Comply with Bluetooth protocol V3.0. Answer and refuse a call, dial the last phone number and listen to the music on cell phones. Surround stereo sound. 10 meter effective distance of Bluetooth and noise reduction. Specifications: Interface: USB 3.0 Output power of earphone: 5MW Continuous playing Time: 5 hours(approx.) Talk time: 3 hours(approx.) Effective distance: 10 meters Battery type: 150mAh high capacity polymer lithium battery Charging time: 2-3 hours(approx.) Size: 14.5*4cm Package Includes: 1x Bluetooth Sunglasses 1x USB Cable 1x User Manual Price Rs 3500/=