This DSP receiver adopts premium housing and quality electronic parts, with accuracy process, which ensures fine durability and long service time. Digital display design, you can see the operation mode, current frequency, volumes, bandwidth clearly. Multifunction design, with volumes adjustable, frequency adjustable, bandwidth adjustable, step frequency adjustable function. You can have a try. Specifications: Name: DSP Receiver Material: metal Color: black Battery: 1 * 3.7V, 1000mAH battery (included) Item size: 89 * 80 * 40mm / 3.50 * 3.15 * 1.57in Item weight: 198g / 6.98ounce Package size: 135 * 132 * 50mm / 5.31 * 5.20 * 1.97in Package weight: 251g / 8.85ounce Packing List: 1 * DSP Receiver 1 * Type-C Cable 1 * Antenna