Regarding The Wahl Cordless Clippers Charger, Kaynway, New And Old Versions ?Compatibility?: The Replacement 4V hair clippers Charger for All Wahl Senior Magic Clip Designer 5-Star Series 100th year Aniversary, Sterling-4 and cordless clippers, and 8164 Shaver, Universal for wahl 1919 100 Year/ 8164/8591/8148/8504 /8481 All new and old versions, All series of above models ?Professional Charger for Wahl Clipper ?The hair clipper Charger only 6.7 Ounces, Input: 100-240V AC, 50-60Hz Output: DC 4V, ideal for worldwide travel, clipper charger with 2M power cord. The extremely long power cord allows you to move arbitrary. ?Safety and Durable?: Made of high-quality materials designed with solid hardware pins, is more more durable and safer to prevent overvoltage, overcurrent and short circuit, wrok for your clipper, shaver, Trimmer. ?Compatibility models?: Magic clip Sterling-4 Designer Senior Aniversary super taper Finale Shaver charger for ( all old/ newer versions ) Wahl Electric 5-Star 8164 Finale Shaver, Hair Clipper 1919 100 year clipper 8148, 8504 / 8504-400, 8481, 8591/8591-001 / 8591-1235 / 8591-016 / 8591-018,/ 8504-600, 8509, 100th Anniversary 81919, 1919 100 year clipper charger. ?After-sale Guarantee?: Ours Clippers Charger come through the Amazon carrier! with prime it is free 2 day shipping. 12-month Worry Free Warranty,24-hour Quick Customer Service, If you have any questions, please contact us.