These were a gift but she loves the! I was on a steep incline going downhill where I previously basically slid down in my nikes. I wasnt expecting it to be like the bigger JBL speakers but it does the job! Overall fantastic, please KEEN keep making these and I will keep buying them. 3) Press the button on each unit for 5 seconds. Excellent ANC technology6. This waist trainer works perfect for my use - to increase awareness to proper form and posture during lifts. No slipping like some others. Beautiful sandals, fit great even on my wide feet lol Also, you can wash them either with a damp cloth or in washing machine.