Review on Zerone K21 Business Bluetooth Headset: Sweatproof Wireless Earpiece with Noise Reduction Mic - Perfect for Office, Business, and Workout by Jimmy Montalvo

I tested a new headphone, the quality is excellent. I can listen to Spotify music and when a call comes in I just press the earcup once and the call quality is great for both the caller and the caller. If you need stereo, you can buy one for each ear, but one alone is good. Just one thing, it lets you hear any other nearby sounds that the headset blocks. Only one thing is good too, you want to listen to music before bed without disturbing your partner next to you. Spotify now lets you set a timer for how long you want your sleep music to play before kicking off. The full charging time is only 2 hours.