SODO MH3 Wireless Headphones with NFC & Flip-out Loud Speaker it comes with Powerful Bass Super Stereo Sound Effect: 40mm large dynamic alloy speaker drivers,   Tuned By Professional Tuning Team.   Excellent Deep Bass & Stereo Sound Output Performance, enjoy high quality music two different ways.    Multiple modes of connection help you enjoy your music better it supports bluetooth 3.0 , aux in, FM radio, TF card and NFC.    Easily Foldable to make into a Speaker or a pair of Headphones  Foldable design of SODO MH3 Bluetooth 2 IN1 Headphone with Flip-out Speaker makes it very convenient to carry around.  Wherever you are travelling to, SODO MH3 fits effortlessly into your luggage and follows you around, taking up  minimal spaces.  Finest Material On Sodo MH3 Bluetooth 2 IN 1 Headphone, the finest materials were applied like leather cushion head-pad makes it perfect for long-time wearing  as well as noise isolation.  Headband is designed to be adjustable so it could fit different head size.  No matter how long you enjoy music with Sodo MH3, you will not get tired easily.  Just get soaked in the world of great music! Built to Last Sodo MH3 has a Built-in Large Capacity Rechargeable Lithium Battery of 400mAh, which allows you to listen to music for quite some hours.  It lasts 6 hours in headphone mode, 3 hours in speaker mode, 8 hours talking time and 23 hours standby time.  No need to charge every step of the way, it will last along the way.  Bluetooth wireless headphones  Equipped Bluetooth 3.0 Version Chipset with up to 10 meters of Range without obstacles.      Hands Free headset, receive and make calls with built in Microphone function.   Listen to your favorite music wirelessly.   Noise Cancelling  Acoustic echo cancellation and noise reduction effectively reduce ambient noise while talking, make far-end listener cannot hear what you said   become history, just like talking face to face.  Comfortable Wearing Design  Based On Ergonomic Design, Head Beam Made of Genuine Leather, the earmuffs are made of soft breathable Faux Leather, providing you   comfortable wearing-on experience.   Individual Folding design  about two Earphones can be 90 degrees of freedom bending, convenient to carry and easy to storage, reduce unnecessary waste of space.  Compatible with Most Devices  Sodo MH3 flip-out speaker is compatible with most devices with Bluetooth in the market.   Be it an iPhone, Samsung, HTC, LG, Sony or other android smartphones, you can connect Sodo MH3 with them   effortlessly and start enjoying your favorite music in no time.  Powerful and stylish  The new wireless Bluetooth headphone provides you with true audio freedom. They're wireless, have a long lasting rechargeable battery, which makes   it an awesome traveling companion.How to use Bluetooth Function In this mode The FM signal is Cut-of .The indicator lights will alternatelybink between blue&red indicating bluetooth mode is ready for pairing.Use a bluetooth enabled audio player or cellphone to search for the bluetooth pairing name MH3 being transmitted by the headphone.Once paired , play the music on audio player /cellphone and it will be heard on the headphone unit. Technical Specifications:    Model: MH3    Earpiece Design: Ear-Cup (Over the Ear)    Microphone: Yes    Bluetooth: V 3.0    Frequency Response: 90HZ-18KHZ    Output Power: 3W*2     Speaker: 4Ω 3W     Speaker Size: 40mm*2     Sensitivity: 500mv+/-50mV    Channel Separation: ≥90dB     SNR(Signal to Noise Ratio ): ≥70dB     Working Voltage: DC 5V     Battery Capacity : 400mAh     Input power :DC5V 500mA    Charging Time: 2 hours     Working Time: 2-3.5 hours     Mode: Bluetooth / FM Radio / TF card / Audio in     Item Size: Approx. 20 * 19.5 * 8.5cm     Item Weight: 230g