Synergy Durable Dual Foil Shaver delivers up to 100 minutes of run time on a single charge of its powerful lithium-ion battery. Its staggered head shaver blades deliver ultra-close cutting with gold titanium foils that are hypoallergenic for less irritation and bumps. SYNERGY is built light at 142g without compromising the high standard set for all DART Clipper products. An Android USB charging port means flexibility as you can re-charge the batteries on the go as easy as charging a mobile phone. Features: Lightweight ergonomic design. Gold titanium hypoallergenic foils. Twice as sharp as a regular shaver. Led light display charge. Lightweight. Irritation free.