G-Shock Watch Ignite Red Series Bluetooth GA-B2100BNR-1AER. Make a bold, powerful statement with the IGNITE RED series in the iconic black and fiery red that embody the ultimate toughness of the G-SHOCK brand. We have injected a few of our flagship models with the strength and passion of the black and red G-SHOCK brand colours. Deep, blazing red accents against striking, dark black give these watches, and the wrist that wears them, a kick of cool confidence. With Bluetooth® connectivity and a solar charging system, the GA-B2100 shock-resistant watches take the iconic 2100 series to a whole other level. The Tough Solar charging system effectively converts light from any light source to power the watch, eliminating the need to replace the battery, and Smartphone pairing via Bluetooth® delivers accurate timekeeping.