Features: Advanced GPS system with 30 seconds quick locating. BT4.0 / Ant+ wireless transmission, fast and stable. 37 available data items and 26 adjustable bike computer settings. 2.5" large screen for reading data clearly. Rechargeable battery with long battery life up to 30 hours. IPX6 waterproof. Computer mount included. Specifications: Color: Black/ Red/ Orange/ Blue(optional) Material: Aluminum Alloy Wireless Protocol: BT4.0 and ANT+ Screen Size: 2.5 inch Waterproof Rating: IPX6 Endurance: 30 hours Charging Time: 3.5 hours Size: 75 * 55 * 18 mm / 2.9 * 2.2 * 0.7 in Weight: 80g / 2.8 oz Package Size: 17 * 8 * 5 cm / 6.7 * 3.1 * 2 in Package Weight: 174 g / 6.1 oz Package List: 1 * Bicycle Computer 1 * USB Cable 1 * Manual 1 * Computer Mount