Portable Mini Outdoor Speaker

The product with the built-in battery more durable for using that you can listen to music and make calls for 5 hours(depending on the volume of the sound) . You can conveniently pick up a call by this mini speaker in car, bathroom, at home or office, anywhere during it is connected to your Smartphone. 3 3/8"L x 3 3/8"W x 1 1/2"H