Bluetooth Wireless Adapter for Bose QuietComfort qc 25 with Microphone/Volume Control Wireless AdapterThis adapter is perfectly matched with the function and appearance of Bose qc 25. You can enjoy your music wirelessly and never worry about getting the cable caught on things Advanced Bluetooth 5.0Faster transfer speed, better sound transmission, Pairing with IOS and Android smartphones in no time. Gold-Plated Audio ConnectorDifferent from others, our wireless adapter chooses gold-plated audio connector for better signal conductivity and extraordinary listening experience Professional DesignBuilt-in microphone can pick up your voice clearly and give you a good communication experience. The buttons on the adapter are easy to play/pause, answer/down calls and adjust the volume. Micro USB Charging PortLocated in a hidden place, effectively prevent dust and damage. Please remove it from the headset before charging. It's time to go wireless Fit for: Bose QC25 Packages: 1 x Bluetooth wireless adapter 1 * charging cable (not include Bose QC 25 earphones) -- No wires -- With this Bluetooth wireless adapter, enjoy your music in a wireless world --Bluetooth 5.0-- Stable and smooth sound transmission allows you to enjoy the world of music -- Fits Apple and Android Smartphones -- Quickly pair with all kinds of smartphones, don't worry about mobile phone changes. --Long working time-- Up to 6 hours of music time or phone talk time -- Easy installation -- Put just need a second -- Built-in Microphone -- Accurately pick up your voice and give you clear communication -- Professional experience -- Four action buttons on the adapter allow easy Play/Pause, answer/drop phone calls and volume adjustment