Features: brand new and high quality Pure metal for shell, smooth lines, high-quality sturdy appearance, smooth texture to the for touch. In Bluetooth-compatible mode, if the phone has a sudden incoming call, tap the for play button to achieve one-click answering, and the built-inThe miniature microphone can provide high-quality hands-free calls. Stable Bluetooth-compatible 4.2 wireless technology and efficient signal transmission between devices, manually connect it for the first use, and then start Bluetooth-compatible mode for media audio playback on any for smart device. Upgraded 500mAh rechargeable polymer lithium-ion battery, 1 hour full charge, 5 hours continuous broadcast without pressure. The body is only 180g, compact and portable, so you can enjoy music anywhere. Specifications: Material: Metal Weight: 395g Size: 72x34x55mm/2.83"x1.34"x2.16" Color: Blue/Green/White Battery Capacity: 500mAh Frequency Range:2.4G-2.480GHz Power: 3W Audio Signal-to-noise Ratio: 75db Distortion: 1% Speaker Impedance: 4 Horn Caliber: 36mm Full Frequency Audio Frequency Range: 200-10kHz, Deviation-10 db max Distance:> 20 meters (Barrier-free) Charging Port: Micro USB Charging Voltage: 5V/1A Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Portable Speaker