Holux GR-236 (GPSlim236). Form factor: Wireless Receiver Module, Acquisition times - cold: 42 s, Acquisition times - warm: 38 s. Bluetooth version: 1.1. Weight: 56 g, Width: 46.3 mm, Depth: 67 mm. Battery technology: Lithium-Ion (Li-Ion), Battery life (max): 10 h. Operating temperature range (T-T): -10 - 60 °C, Storage temperature range (T-T): -20 - 85 °C, Operating relative humidity range: 5 - 95 %