They are just what I needed to be able to charge our iPhones rapidly (50% in only 30 minutes! Going to look around once COVID-19 restrictions are lifted. The grip is great, but I like that I can tighten or loosen it by bending the metal a little. I cannot recommend them highly enough. -- Barrel lock is cumbersome. This is the perfect case for my earbuds! am I ever glad I did! Clearance! Lights won’t turn off. Really good sound quality and noise cancellation!