Condition:New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is.Bluetooth Distance:33 ft Number of Earpieces:Double Custom Bundle:No Working Voltage:3.7V Charging Time:2 Hours Charging Voltage:DC5V Form Factor:Headband Type:Earbud (In Ear) Bluetooth Version:5.2 Wireless Technology:Bluetooth Noise Reduction:CVC 8.0 Connectivity:Bluetooth Features:Built-In On/Off Switch, Microphone Mute Button, Noise Isolation, Open Back, Volume Control, Wireless, Sweat Proof, Water-Resistant, Replaceable Ear Tips, Rechargeable Battery, HD Voice, Extra Bass, Call functions, Built-in Microphone, Adjustable Headband, Neckband Microphone Type:Built-In