Fuleadture Bluetooth Headphones, Wireless V4.1 NFC Stereo Sport Over-Ear Headphone Headset with Pedometer Earphone, Hands-Free Calling with Mic for iPhone Samsung PC All Bluetooth-Enabled Devices BLUETOOTH 4.1 STEREO HEADPHONES - Adopted advanced Bluetooth 4.1 technology and NFC fast pairing function, when high speed connecting, bring higher-quality stereo sound experience. Delivers deep, immersive sound at any volume,making them the best Bluetooth wireless headphones available. Stream your music wirelessly up to 33ft. BUILT-IN INTELLIGENT APP - Uses smart APP (Android OS), and built-in pedometer will keep your fitness activity, so you will know exactly how many calories you have burnt and the distance you have covered. BUILT-IN MIC / CVC 6.0 NOISE REDUCTION TECHNOLOGY / MULTI-POINT CONNECTING - Supports hands-free call with built-in microphone and voice reporting incoming call number. With the latest enhanced technology makes your voice sound clearer in noisy environments. Support connect two smarts phone simultaneously, so you can seamlessly switch between your business and personal phones. SUPERIOR BATTERY CAPACITY / ON-BOARD CONTROLS - With 800mAh high capacity rechargeable build-in lithium battery, the wireless headphones last up to 60 hours talking time, 45 hours music time and 180 hours standby time. Effortless touch controls allow for simple command of your music and calls. Easily skip songs, change the volume and take calls right from the headphones. LIGHTER AND MORE COMFORTABLE - A high-quality leatherette headband and velour covered over ear cushions provide wearing comfort for long listening sessions. Deep ear wells, lightweight and foldable headphones. Ideal for TV, air travel, sport gaming, getting to work and any other noise reduction environments. Built-in high capacity 800mAh rechargeable lithium polymer battery, only need 3hrs to be fully charged, while up to 45hrs music playing, 60hrs phone call and 180 days standby. Feel free to enjoy long using time without being interrupted. Llightweight and foldable headphones, ideal for TV, air travel, sport gaming, study, walk, reading, work, sports and any other noise reduction environments. The best choice as a gift for dad mom, children, friends. Connect TV with NB-9 by Bluetooth, enjoy movie quietly avoid disturbing your family. Additional headphone case is included for indoor &amp; outdoor, offer maximum portability for easy storage anywhere you go. Bluetooth Version: V4.1 Talking Time: About 60 hours Music playing time: 45 hours Standby Time: 180days Charging Voltage: 5V Charging Time: About 3 hours Battery Capacity: 800mAh Wireless Range: 10m RF Frequency: 2.402-2.480GHz Working Temperature: -10-60