Bluetooth V5.You could listen music, switch songs, answer calls via BT function Integrated microphones help you make and take phone calls without removing the earmuffs Sufficient max volume and excellent stereo bass sound quality, PROHEAR 033 radio headset can effectively cover the surrounding noise Radio Europe standard frequency ranges, You could tune to the exact AM radio frequency for UK stations, such as AM909 and AM1089 Store up to 10 AM and 10 FM stations in memory(total 20) Auto-scannin