Improve connection between your phone and sonar at long distances when fishing with your bait boat. Deeper Range Extender is an officially certified high-grade waterproof device that's easy to set up. It comes with a phone holder that will fit most phone sizes. Works with all Deeper sonars, but is ideal to use with PRO/CHIRP series.Product InformationMaterial: Deeper Range Extender: ABS enclosure, metal insert; Phone & Deeper Range Extender Holder: Aluminium alloy, ABS, stainless steel, siliconeOperating temperature: 0°C to 40°C / 32°F to 104°FOperating time: Up to 14 hoursCharging technology: 100% in 3 hoursInternal battery: Lithium Ion, 3.8V Rechargeable, 1300 mAh (typical)Outlet adapter (not included): Input AC 110V/240VOutput USB A, 5V 2AConnectivity: Wi-FiConnectivity range: Stable connection up to 200 m / 656 ftPhone clip width: 5 to 8.5 cm / 2 to 3.3 inColour: Black and translucent black