-Model#: ak45-Interface: 1 Jack 3.5mm + USB-Cable Lenght: 1.5 m-Microphone: Yes-Special feature: Volume Control On Cable, Built in sound card

-Part Number: BT-3401-Frequency Response: 20hz-50hz-Interface: Bluetooth-Color: White

-Model#: S1-Interface: 1 Jack 3.5mm-Cable Length: 1.8 m-Microphone: Yes-Special feature: Adjustable Height

-Model#: J-SERIES-Interface: 1 Jack 3.5mm + USB-Cable Length: 2.1 m-Microphone: Yes-Special feature: 

-Built-In Siri-Four-Microphone Array for Far-Field Siri-Wi-Fi & Bluetooth 5.0 Connectivity-Touch Surface-360° Audio, Computational Audio-Bass Extension, Noise Cancellation-Stereo Pairing-Intercom Spreads the Word-Easy Connection, Setup, and Control-Temperature & Humidity Sensing-Works with Your Apple Devices-System Requirements: iPhone SE, iPhone 6s or later, or iPod touch (7th generation) with the latest iOS; or iPad Pro, iPad (5th generation or later), iPad Air 2 or later, or iPad mini 4 or later with the latest iPadOS