This compact multi function Bluetooth device pairs with mobile phones for hands calls and audio, includes a removable 18650 battery with solar charging, and features an emergency flashlight for low light situations. It is built for portability, reliability, and simple operation. Phone focused Bluetooth pairing: Quick, stable connection with most mobile phones for calls and music. Not compatible with Bluetooth headsets. Removable battery and solar charging: Standard 18650 cell that you can ; solar charging support extends usage when charging options are limited. Emergency flashlight: Built in flashlight for use in dark or during outages; activate by holding the light control. Wireless freedom: Bluetooth enables true wireless operation without cables for on the go use. Compact and durable: Small, lightweight and robust enough for travel, camping, car kits, or home use. Use scenarios: Outdoor trips: listen to music, take calls, and have a reliable light at campsites. Travel and commuting: hands phone use with a portable light in hotels, trains, or airports. Power outage or emergency kit: rely on solar charging and a swappable battery for light and connectivity.