Features: Bright LED light enhances visibility at night. Multiple uses: Running Jogging cycling walking & hip-hop, etc. Adjustable strap fits arm circumference from 10.2 into 22.8 in. Simple operation, easy disassembly. Made of high-quality TPU material, soft and comfortable. Two modes of the key button: always-on/flash.
Specifications: Material: TPU Color: Red /Green/ Blue(optional) Item size: 18.5*2.2cm/7.3*0.9in Item weight: 60g/2.1 oz Packing size:23.5*8.1*3cm/9.3*3.2*1.2in Packing weight:80g/2.8oz Power by: 2* 3V 160mAh CR2032 batteries (included) Battery life:70h
Packing List: 1*Sports Armband
Note: Two extra button batteries are added to each armband