The Jabra Evolve 75e MS is equipped with two very discreet and comfortable in-ear headphones. These stereo headphones are designed for use in very noisy working environments, such as open office spaces. With the Jabra Evolve 75e you can focus your full attention on your telephone conversation. This version is optimized for use with Skype for Business. The new Jabra Evolve 75e MS headbuds offer superior sound quality and a comfortable, wireless intra-auricular design for all-day neck wear. Made for UC (Unified Communications) with a unique noise canceling microphone technology, you can connect them to your mobile or tablet via Bluetooth as well as to your PC or Mac with the USB dongle. Active noise cancellation helps you to concentrate while the integrated busy light tells your colleagues you don't want to be disturbed. Active noise canceling uses advanced microphones to monitor and reduce ambient noise. Eliminate low frequency noises, such as the hum of the air conditioner. The built-in busy light acts as a "Do Not Disturb" sign to let others know that you are on the phone or don't want to be disturbed. Thanks to the battery life, you can enjoy calls and music for up to 14 hours, followed by a single charge.