The Bose Soundlink Around-Ear Bluetooth Headphones feature TriPort technology, which enables full-range, natural sound from a lightweight design. The over-ear headphones also feature active equalization, providing improved sound quality. Additionally, a built-in microphone lets you make calls with your smartphone and use the voice-recognition on your apps. The AE2w headphones allow a Bluetooth range of 30 feet, so you can move around freely. The AE2w’s Bluetooth control module lets you connect wirelessly to your tablet, smartphone or other favorite Bluetooth devices. The headphones can even be paired with two devices simultaneously. You can watch a video on your tablet while staying connected to your smartphone. The headphones will automatically pause the video to answer a call. Then, when the call is finished, the headphones automatically switch back to the video.