ZKTeco ZKB202s 2D/1D wireless Barcode Scanner Key Specifications Connectivity: 2.4 GHz wireless (up to 60m–150m range) and optional Bluetooth. Battery: 2000 mAh Li-ion (18650) providing over 12 hours of continuous use and 4 weeks of standby. Storage Capacity: 16 MB memory (stores up to 100,000 commodity codes). Physical Size: 167.3 × 70.5 × 81.5 mm. Weight: 170 g