A4tech G3-200N Wireless MousePerfect surface adaptability Innovative V Track technology utilizes vertical ray rich which goes deep into the details of all surface. Guaranteed smooth and accurate tracking anywhere, even on furry textiles. Throw away your mouse pad! 2. 4G wireless connectional 2. 4G wireless technology, No shaking delivers the absolute stability of wired mouse with wireless convenience and freedom. No delays and shaking. SPECIFICATIONS: Model G3 200N Name: Energy