A new classic The final ZE3000 IEM is a new classic audiophile-grade TWS earbud designed with the latest research in acoustical engineering. f-Core Wireless Dynamic Driver The diaphragm of the ZE3000 is made of a special lightweight resin surrounded by an extremely flexible silicone, which ensures smooth and undistorted diaphragm movement. These two components are molded together without the use of adhesives, improving assembly accuracy and significantly reducing weight and sound distortion. f-LINK Damping System The ZE3000 features a new f-LINK Damping System that optimizes the pressure in the acoustic chamber to properly control the sound characteristics without the need for external vents. Convenient touch media control Press the face plate to access control options like play, stop, volume up, volume down, next track, previous track, and take call/end call. Charging case The ZE3000 includes a portable charging case that can easily be opened and closed with one hand. Shibo coating The resin surface of the ZE3000 is finished with a Shibo coating reminiscent of high-end DSLR cameras. Shibo is a Japanese word that refers to the wrinkling of paper or leather. Product highlights aptX compatible Comfortable, ergonomic housing 5 ear tips of different sizes IPX4 water resistant Specs Bluetooth version: 5.2 Supported codecs: SBC, AAC, Qualcomm aptX, aptX Adaptive Continuous music playback: 7 hours / 35 hours with the case Charging time Earbud: 1.5 hours Case: 2 hours Battery capacity Earbud: 35mAh Case: 300mAh Water resistance: IPX4 What’s included ZE3000 IEM Charging case Type-E ear tips (five sizes) USB Type-C charging cable