1. Portable design, easy to operate and convenient to carry. 2. Up to 10m transmission distance. 3. Built-in microphone. 4. Support TF card music playback, plug and play. 5. Support hands-free, Aux-in, FM & NFC & MP3 Function. 6. Charging time: 5-6 hours 7. Working time: 7-10 hours 8. IPX4 waterproof
