Tellur Mood True Wireless Bluetooth headphones, Bluetooth 5.0, black Integrating Bluetooth 5.0 technology, the headphones are easy to use with other devices used to play music. Mood offers a real and powerful wireless stereo experience with deep, clear sound, an integrated microphone for your hands-free conversations and control buttons for your music and calls. The headphones allow you to charge on the go, without needing a power source. Convenient and easy to transport, the charging box allows you to recharge the headphones on the go, without connecting to a power source.