ADJUSTABLE HEADSET Quick removal and installation design offers unprecedented convenience for cleaning and washing. SOFT, COMFORTABLE & WARM Features premium double soft knit to provide the maximum comfort, delicacy, and secure-fit mobility for most versatile lifestyle. MICRO USB CHARGING PORT Built-in easy-access Micro USB charging port (Micro USB Cable included) for a more convenient charging. STRETCHABLE MATERIAL SB210 musical headset beanie is thick, soft, and large enough to wear over ears and provides maximum comfort and mobility. SoundBot Wireless Smart Headset in Different Styles SB210-BLK (Acrylic Rib-Knit) SB210 musical headset beanie is thick, soft, and large enough to wear over ears and provides maximum comfort and mobility. SB210-RFL (Lycra/Spandex) Reflective strip perfect for those late night run to keep you visible in the dark while listening to music. SB210-POM (Acrylic Rib-Knit) One size fits most. Stretchable Material for comfortability and maximum fitness. SB210-CBL (Acrylic Rib-Knit) Its soft material will keep you warm while listening to music at the same time. Other SoundBot Products You Might Like SoundBot SB221 SoundBot SB510 SoundBot SB212 Wireless Receiver Adapter Connectivity Bluetooth Bluetooth Bluetooth Bluetooth, Auxiliary, USB Water/Sweat Resistant Built-in Microphone Hands-Free Calling Rechargeable Battery Wireless Range Up to 33 Feet Up to 33 Feet Up to 33 Feet Up to 33 Feet