Radio for camping and outings DENX DX2449 portable Bluetooth radio with solar panels and high-quality USB and TF playback. Enjoy clear and distinctive sound wherever you are with the DENX DX2449 portable radio, featuring Bluetooth technology, USB/TF playback, and solar panels for charging anytime, anywhere. Technical Specifications: Model: DENX DX2449 Input Power: 5V (Type-C) Battery: Lithium battery (18650) – not integrated Charging time: 4.5 hours Playback time: 3.5 hours Solar panel charging time: 8 - 9