SUPERIOR HD SOUND and AMAZING VOLUME: With Advanced APTX tech, HD stereo sound quality with bass,BLUETOOTH V4.1 WIRELESS TECHNOLOGY: Bluetooth V4.1 technology connect seamlessly with all Bluetooth enabled devices up to 10 meters (33 feet). With wireless headphones your hands are always free! MULTI-POINTS CONNECTION: The Bluetooth Earphone can pair 2 Bluetooth devices at the same time.LONGEST BATTERY LIFE: GVOZD Bluetooth headphones provide up to .....More detail