The Bose SoundWear Companion Wireless Bluetooth Neckband Speaker in black is a portable speaker system that offers 2.0 channel sound with vibration for enhanced audio experience. With wireless connectivity via Bluetooth, it is compatible with universal devices and features a rechargeable battery for on-the-go use. This speaker from Bose also comes with a remote control, integrated microphone, and NFC capabilities, making it a versatile and convenient option for music lovers on the move.