Bluetooth Headphones 14Hr Working Time, Truck Driver Bluetooth Headset, Wireless Magnetic Neckband Earphones, V4.2 Noise Cancelling Earbuds w/ Mic, Compatible with Any Bluetooth Equitments POWERFUL AND SAFE BATTERY-- Our powerful batteries support over 14 hours non-stop working time, about 300 standby time, and charge in about 2 hours. With MSDS certification ensures your health. best for trukers drivers HD VOICE NOISE REDUCTION--The bluetooth 4.2 techonlogy,Built-in Jelee 8634 chip, stereo wireless voice, ensures high-qualified wireless audio experience, intelligent noise reduction ensures enjoying your own world when you are outdoor, Volume adjustment--you can adjust your voice in the headphone by switching the UP/DOWN button and don't leave fingers off the button for seconds.. SWEATPROOF WATERPROOF--Mamamiya bluetooth earbuds support IPX4 waterproof sweatproof, you don't need to worry the Light rain or sweat will ruin the headphones,while you are in a gym,running, jogging,workout yoga. please make sure not using in a pouring rain or soak in the water. COMBINATION USE--The Mamamiya 900S bluetooth headphone supports one set-one bluetooth and two sets-one bluetooh equitment (iPhone 7 Plus 6s 5s Samsung Galaxy S7 Edge S6 S5 Note5 LG G5 V10 Motorola HTC iPad tablet)combination use, which means you can enjoy the same voice with your partner at the same time. Don't worry it will not impact your call receiving, only the host can receive the call. (You can drop down to see the detail of combination use). LIGHTWEIGHT NECKBAND DESIGNED--The bluetooth headsets Only o.1 LB, TPU Bendable extremely comfortable neckband. Your neck won't hurt after wearing neckband and the suitable earplugs for whole days traveling and working. Product Description Two Sets - One Sound Mamamiya Bluetooth headphones support simultaneous usage. You can easily connect two sets of wireless headphones to the one device at the same time and enjoy sharing sounds for over 14 hours non-stop. HD stereo voice will make you feel the full depth of each sound? A. How to use the combination? * Before connecting Bluetooth, turn on both the headphones, two sets are flashing. * Switch the both call-receiving buttons at the same time in 2 to 6 seconds after the light color changed (one is blue, and the other is red) * The stable blue light one is the host, and the red one is the guest one. * Open your connecting equipment and turn on the Bluetooth, find the host one Bluetooth 900s and connect. * You can both enjoy the same voice now, and both can adjust the voice. B. How to quit the combination? Turn off the host or the guest one, and re-open to connect your other Bluetooth equipments. C. How many headphones can be combination use? Mamamiya Bluetooth headphone can only support two for combination. D. If call comes, can the both headphones hear? When the call come to your phone, only the host one can hear the calls, and the guest one will temporarily stop. LIGHTWEIGHT NECKBAND DESIGNED The bluetooth headsets Only o.1 LB TPU Bendable extremely comfortable neckband IPX4 waterproof, Light rain or sweat is not a problem, do not wear it in pouring rain or soak it in the water Your neck won't hurt after wearing neckband and the suitable earplugs for whole days traveling and working INTELLIGENT MAGNETIC DESIGN Comfortable in-ear earbuds Bluetooth 4.2 with Jelee 8634 chip With MSDS certificate for the batteries, and over 14 hours non-stop working time Decreases the burden on your ears and fixed the handset in the magnetic position when not in use HD Voice, Lower the Noise Noise reducing technology of Mamamiya Bluetooth earphones will help you to filter the background noise. Make calls anywhere you like - noise reducing technology will guaranty the clearance of the voice and a high quality stereo sound. Enjoy your music- enjoy your life You won't feel any pressure while walking or going into your favorite sports with Mamamiya headphones. Lightweight, ergonomic 3D neckband is made of soft material is made for you to get maximum pleasure of using it. Easy reached control button allows quickly adjust the volume and switch up the song. Keeps you connected to your smartphone wherever you go. Mamamiya headphones allow you enjoy up to 14 hours of non-stop working mode and 300 hours of standby mode