BytePower Solar Power Bank 20000mAh with Dual USB Ports, LED Flashlight, Compass, Carabiner and Whistle

High-Capacity Battery: Built-in Grade A 20000mAh anti-explosion lithium polymer battery with over 3000 full charge cycles. Smart IC chip offers protection against overcharging, over-current, over-voltage, and short circuits Fast Charging: Supports 5V/2.1A fast input and dual 5V/3.1A USB output for charging two devices simultaneously. Fully recharges in about 4–5 hours via USB, compatible with most USB devices including Sumsung Galaxy phones,  iPhone, Andriod cell phones, iPad, tablets and laptops Solar Charging Mode: Designed for emergency outdoor use; solar panel provides up to 5V/0.2A charging speed. For best results, fully charge the power bank by USB before trips Durable & Multifunctional: IP67 waterproof design with built-in compass, dual LED flashlight (lighting and SOS modes), carabiner for easy attachment, and whistle for emergencies Outdoor Ready: Ideal for camping, hiking, cycling, fishing, traveling, and beach use.