Check the listing for details. Positive Grid Spark LINK Guitar Wireless System. Condition: New. Listed at 129.00 USD. Wirelessly Connect to Your Spark Series Amplifier Cut out the cable with the Positive Grid Spark LINK from Sweetwater! This incredibly low-latency wireless guitar system seamlessly connects to your Spark series amplifier of choice, offering a 70-foot range and 4-channel operation to accommodate multiple musicians using their own Spark LINKs simultaneously. Running a rig with a wide variety of disparate 6-strings? No problem: the Spark LINK’s 110-degree hinged plug grants a secure connection to output jacks of all styles and sizes. You also get a whopping six hours of uptime from a single 2-hour charge. Whether you’re looking to free up your movement onstage or reduce cable clutter in the practice room, Positive Grid’s Spark LINK is a must-have addition to your Spark-centered rig.