Specifications:The bluetooth-compatible music player has 10 meters transmission space with fast and stable connection.It has a mini size, which is portable when you go out.It provides you high fidelity stereo.With a stylish appearance, it can be a perfect gift.Item Name: bluetooth-compatible Music PlayerMaterial: MetalBluetooth Version: 4.2Battery Capacity: 400mAh (Included)Voltage: 3.7VPlay Time: 3-4 HoursBluetooth Distance: 10mOutput Power: 3WFrequency Response: 20HZ-20KHZFeatures: Stylish, Portable, RechargeableSize: 5cm x 5cm x 3.5cm/1.97" x 1.97" x 1.38" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x bluetooth-compatible Music Player1 x USB Charging Cable1 x Lanyard