Built-in 57mm speaker, compact design, high volume output. Bluetooth 5.2 for wireless connection with an effective range of up to 10 meters, ensuring stable performance. Supports multiple playback modes including Bluetooth, TF card, and USB for versatile audio options. Features an emergency flashlight function: short press for steady light, long press for strobe mode, ideal for low-light situations. Product specifications: [Dimensions]: 180 x 66 x 113mm [Speaker]: 57mm 4Ohm 3W [Battery capacity]: 800mAh (18650) [Bluetooth version]: 5.2 [Play time]: Up to 2 hours [Supported functions]: FM/AM/SW radio, Bluetooth, USB drive, TF card, flashlight, solar charging, hand crank charging Color: Gold Material: ABS Note: The radio may be shipped in a random color; specific color requests cannot be accommodated. Package includes: 1 x Radio 1 x Data Cable Lighting and display differences may cause slight variations between the product color shown and the actual item. Measurement may vary by +/- 1-3cm.