🏷️ Basic Information Identification Make: Garmin Model: nuvi 1690 Manufacturer: Garmin Ltd. Product Category: Personal Navigation Device (PND) 📋 Manual Details Document Information Manual Type: Owner's Use Operator Manual Language: English 📄 Specifications Device Details Device Type: GPS Navigator Intended Use: Vehicle Navigation, Location Services Power Details Power Source: Rechargeable Lithium-ion Battery, Vehicle Power Cable Display Details Display Type: WQVGA Color TFT Display Display Size: 4.3 inches diagonal Connectivity Bluetooth: Yes (for hands-free calling) Memory Internal Memory: 2GB External Memory Support: microSD Card (not included) Navigation Features Gps Receiver: High-sensitivity Voice Guidance: Yes (Text-to-Speech capability) Points Of Interest: Preloaded (varying by region) Audio Speaker: Internal Mono Speaker Ports Interface: USB (for data transfer and charging) 📄 Operational Details Battery Operation Battery Capacity: Internal Rechargeable Lithium-ion Charging Charging Time: Approx. 4 hours Usage Environment Operating Conditions: Temperature: 0°C to 50°C (32°F to 122°F) Satellite Tracking Hot Fix Technology: Yes (for faster satellite acquisition)