Adapt Keychain Bluetooth GPS . Form factor: Wireless Receiver Module, Acquisition times - cold: 42 s, Acquisition times - warm: 34 s. Bluetooth version: 2.0+EDR. Weight: 30 g, Width: 28 mm, Depth: 62 mm. Battery technology: Lithium-Ion (Li-Ion), Battery life (max): 8 h, Battery capacity: 520 mAh. Operating temperature range (T-T): -10 - 60 °C, Storage temperature range (T-T): -20 - 60 °C, Operating relative humidity range: 5 - 95 %