ProtoArc EM03 Wireless Bluetooth Trackball Mouse, 2.4G Ergonomic Rechargeable. Hardly used and in excellent condition. Bought new, this trackball includes USB 2.4ghz receiver and can be used over Bluetooth - switchable between different devices. Also comes with charging cable and built in lithium battery. Selling as trackball isn't for me, but I wanted to see what it is like Vs mouse.
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