Feature 1. Portable ring for easy carrying. 2. Mesh cover for protect speaker from water, dust, shock. 3. IPX5 waterproof, dustproof, shockproof. 4. Big power with loud adjustable volume. 5. Call function, noise canceling microphone makes you answer calls without reaching your phone. 6. FM receiver makes you listen radio freely. 7. Support TF Card or misro SD Card up to 32G, support AUX, support USB 2.0 Disk. 8. Easy button control, you can pre buttons to turn on/off, play/pause, switch mode, skip songs, adjust volume etc. 9. Bluetooth-compatible 5.0, compatible with all Bluetooth devices. 10. 500 mAh battery for up to 6 hours of playtime at normal volume on a full charge. 11. Can be the phone set. Specification Bluetooth-compatible: 5.0 Bluetooth-compatible distance: <33Ft Support: FM, TF card input, U disk input, 3.5mm audio input Extended memory: 32G(Not included) Battery capacity: 500mAh Charging Time: 1 hours Listening/Talking time: 4-6 hours Waterproof level: IPX5 Charging parameters: 5V Support music format: MP3, wav, wma, Flac, APE Frequency response: 100Hz-20KHz Signal to noise ratio: 95dB Distortion rate: <1% Material: ABS Color: Black, Blue, Red, Camouflage Product size: 94*94*107mm Product net weight: 330g package: Speaker*1 USB Cable*1 Audio Cable*1 User Manual*1