A:Answer According to JBL’s website it’s Bluetooth v4.1. While not as loud as the Charge 4 or the Extreme and not quite as full sounding it’s better sounding to my ears than any other of comparable size/watt. Although the Charge 3 duel speakers are like half the Watts I t sounds better than the Charge 4 with its mono speaker unidirectional sound. The only other major difference is the 6,000mah batter in the Charge 3 vs the 10,000mah battery in the Charge 4, while the play time might be slightly longer on the Charge 4 it’s negligible for the 1lb additional weight and increase in overall size. Again the main important feature is sound quality, everyone’s ear is different and it also depends on what you listen too. I have both an Extreme and a Charge 3, I’ve listened to everything from metal, alternative, rock, classical, bluegrass, country, electronic trance, old school hip hop, and it all sounds great if you tweak EQ settings per your preference (flat, late night, rock) EQ presets on my iPhone work best for me or EQ off. If you start having connectivity issues I recommend turning off your speaker, unpairing the speaker from your device in settings, doing a hard restart of your device, and then powering on and reconnecting them, that always fixes any cutting in and out issues I have. Also limit how many devices you have paired to the device you’re playing music from. I had 4 different Bluetooth speakers/headphones paired to my iPhone and even though only one was on I found it created a problem.
