Bluetooth Headphones / Headset Rymemo Newest Universal Wireless Stereo Music Sports/Running Earphones w/Microphone Vibration Neckband Style Earpiece for Cellphone,Silver-Black Rymemo Bluetooth headphones Provide 1 Month Free exchange Upon Quality Issue Stereoscopic Blocky DesignFit ergonomics design, very suitable to use during sports. Super Flexible NeckbandFlexible and Ultra light, promising 100% comfort all day long. Amazing Hi-Fi SoundThis Bluetooth headset delivers powerful bass and stereo music. Built-in Clear MicEnsures clear speech, realizing hands-free calling anytime anywhere.