Advanced Bluetooth headset 5.1: Adopted Bluetooth V5.1 in latest QCC3020 chip for faster connection, better sound quality, and less power consumption. Supports stable pairing with any 2 Bluetooth devices simultaneously. HD Clarity: Buit-in dual mic and cVc 8.0 noise cancelling tech to optimize your voice and minimize noise caused by wind, movement, and background sounds. aptX HD transmits your voice with high definition clarity to the other end. Hands-free talk: Easy to us controls that let you change volume, tracks, mute calls and activate Siri, Google Now or Cortana with a single press. So you can finally free your cheek from your cell phone in your car, home, office or while on the go. Comfortable fit: The adjustable ear hook lets you swap between the left and right ear easily, the 3 eartip sizes provide a precise and comfortable fit, 0.63oz lightweight design ensures you a great comfort even in long periods of use. Long-lasting battery: This headset can make calls, play music, videos, audiobooks, voicemail and navigation instructions up to 16 hours and waits on standby for up to 10 days on a single charge. SPECIFICATION: Bluetooth Version: 5.1 Talk Time: Up to 18 hours Music Time: Up to 20 hours Standby Time: Up to 1500 hours Charging Time: Around 1.5 hours Transmission Distance: 10~30m Microphones: Omni-directional microphone Speaker: Dynamic speaker Parts List: 1 Bluetooth headset 1 * USB charging 1 * User Manual 1 *Storage box 3 * earplugs (3 sizes)