General Information Manufacturer Dantona Part Number SW-26 California Residents Physical Characteristics Dimensions 0.8" x 0.1" x 0.4" Weight (Approximate) 0.18 kg 0.40 lb Battery Information Battery Rechargeable Rechargeable Battery Chemistry Lithium, Lithium Polymer (Li-Po) Battery Capacity 40mAh Output Voltage 3.7 V