SoundBot SB250 Stereo Bluetooth Wireless Speaker Headphone, Foldable Design 3.5mm AUX Audio Port (Cable Included) Headphone or Speakerphone? That is the question SoundBot SB250 says both! SB250 makes the statement by transforming to one or the other with a push of one intuitive easy access control button. Duo AUX and Bluetooth mode that both offer universal compatibility and the flexibility of going wireless when paired with Bluetooth enabled devices and the ability to turn the wireless headphone/speakerphone to a wired speaker or headphone via 3.5mm AUX cable when desired. High performance 40mm premium driver with natural and balanced audio spectrum to deliver the dynamic music listening and handsfree talking experience. SB250 offers the ability to keep the music to yourself when used as a headphone or play out loud via the 3W external loudspeaker, sharing is caring after all. Built-in mic and high capacity 1000mAh lithium-ion rechargeable battery for maximum portability and convenience for up to 25hrs of music playtime in wired headset mode.