Alphagear F3 Compact Bluetooth Stereo Headphone 4.0+EDR With Extendable Headband EASY TO USE. To get started, press the multi-function button and hold it down for 5 seconds. When the red and blue lights flash, enable Bluetooth on your mobile device and select F3 to pair. These class II headphones also boast a 10m wireless range to give you a great connection at further distances. STYLISH, COMPACT DESIGN. Made using high-quality materials for durability, these white headphones feature plush, cushioned ear pads for optimal comfort when wearing for long periods of time. For added convenience, they feature an extendable headband that can be folded down for easy storage and transport. HIGH-QUALITY, AMPLIFIED MUSIC. Providing wireless streaming with Bluetooth 4.0 + EDR technology, Alphagear offers high-quality sound for everyday listening pleasure. The CSR chipset delivers strong bass and crystal sound quality to furnish you with an optimal experience every time. ENHANCED FEATURES. Equipped with 3.5mm audio jack and cable, you can easily connect any device which is not Bluetooth-enabled to play music. A micro-USB charging cable is also included so the headphones can be charged on the go, saving you money on batteries. After achieving a full charge, the headset will provide you with approximately 10 hours of playback time. VERSATILE USE. Supporting SBC and AAC codecs and compatible with A2DP1. 2, AVRCP1. 4, HSP1. 2, HFP1. 6 and CVC6.0 devices, you can easily connect to your device wired or wirelessly. The built-in microphone also allows you to make and receive calls when plugged in to your cell phone. Answer calls with the simple press of a button, then go back to listening your favorite tunes when youre through.