Porodo Headphones supports Bluetooth version 5.0. Its frequency range is 20-2KHz and the Bluetooth protocol is HFP, SPP, AVBCI, and AZDP. It takes 2 hours for this headphone to be full charge. You can adjust Micro SD Slot for this headphone up to 32GB. When it is going to be full of charge you can use it for 21hours or in another hand you can find 21Hours playtime or if you’re in the hurry you can charge it for 15 minutes and use it for 1Hour. The pure Bass FM wireless Headphone is a comfortable over-ear pad with an adjustable head Mount. The battery capacity for the Porodo headphones is 400mAh. Listen to your favourite music in high-clarity sound quality. You can control it by the multi-function buttons like pause the music, go to next and previous songs.