I'm also thinking about A2 and T7, and I want to start with one. Please don't think about bose's Bluetooth stereo. When I bought it, I didn't have A2 and T7. I specially went to our Baise store and JBL store for audition, and found that JBL was too much for me to listen to, so I won't talk about it here. Bose's size and rhyme are very good, but today we are talking about Bluetooth speakers, not to mention listening to mini and SL3 together in the store. After comparison, I finally chose SL3, because I was satisfied with the loud sound in the store, but when the volume was below 40%, the color and sound field disappeared, and when it was turned up to 60%, it came out again, and the sound details were not obvious. It is rarely used at home now. Now I usually listen to B&; W P5 headphones. Until I saw A2 and T7 on the market, I really wanted to enter one. Now I only have 3B Bose SL3, B&; OA8 headset, b &；; W's P5 headphones, I have heard of B&; WA7 feels good, but I haven't mastered it yet, so I have great yearning for T7. By the way, when it comes to the three B's, it should be said that each has its own merits. Please don't always say that they are not in the same level. Everyone has their own classic products, which are insurmountable in many people's minds. Or how to call the world's top three B, it can only be said that in the same time period and the same price range, one brand will launch products that are more popular and more technically perfect than the other two brands. Bose SL3 is not as good as A2 and T7, but I can understand that A2 and T7 still have a lot of time to improve and upgrade when SL3 is launched. After all, it is so late! B & ampw pays attention to the restoration of sound, just like classical musical instruments; B & ampo pays attention to the modification of sound, just like electronic musical instruments now. Those who blindly ask for bass, open their mouths and say bass, and those who have been occupied by bass, please choose bose, it won't let you down!