once you know your body measurements,consult the Size Chart on the product pages for actual item measurements to determine which size you should purchase.
Bluetooth: V4.2 (10 Meters) Battery Capacity: 70 mAh Playing Time: Up to 6 Hours Charging Time: 2.5 Hours Standy Time: About 3 Days Technology: N/A Water Resistant: N/A Dimension: 20 x 59 x 15 mm Weight: 8g Warranty: 6 Months Color: White