The aluminum alloy wireless bluetooth speaker is a sleek and sophisticated audio companion designed for modern lifestyles. Seamlessly connect your devices via bluetooth for a wireless audio experience. Enjoy the convenience of hands-free calling with the built-in microphone, while the voice prompt feature enhances user-friendly navigation. Elevate your brand presence with a customized logo imprint, making this bluetooth speaker an ideal promotional item. Features: Bluetooth: 5.0 version Battery: 800mAh ~ 1000mAh (included) Frequency response: 100HZ-20KHZ Function: Bluetooth, Voice prompt, Hands free Price Includes: Free setup Free virtual proof Free logo PMS matching Free 1 color silkscreen imprint on 1 location Free standard shipping to 1 continental US commercial location