Enjoy your music outdoors wirelessly, with the Axess SPBT1031 Portable Outdoor Hi-Fi Cylinder 2.1 Speaker with Bluetooth. You will be amazed with the clear sound, heavy bass and dynamic sound effects. Stream your favorite music from any Bluetooth enabled device, such as your mobile phone, laptop computer, or tablet. FEATURES: 3-inch Subwoofer and 2-inch Horn. Secure simple pairing for user-friendly operating. USB, SD card support, and Line-In Function. Line-in function: Suitable for PC, MID, TV and other audio devices. Side panel control for volume. Built-in Lithium Rechargeable Battery (1000 mAh). Strap for easy portability. Frequency Response: 100-20 KHz.