Retekess TR602 2 Band Bluetooth Radio MP3 Player 1. Frequency: FM: 87.5-108 MHz, MW: 522-1710 KHz 2. Supported memory: TF cardUSB flash drive, up to 16GB 3. Wireless version: 2.1 4. Wireless range: 10 meters 5. Audio format: MP3 6. Speaker: 40mm 16-core internal magnet 7. Output: 2W x 2 8. Frequency response: 120Hz–20KHz 9. Distortion: 1.5W = 1%, F = 1KHz 10. Built-in rechargeable battery: 1000mAh lithium battery 11. Charging voltage: DC 5V 500mA, Type-C interface Features: 1. Combines AMFM radio frequency and wireless (30-foot range) speaker functionality; MP3 player supports TF cards and USB drives; AUX audio input; features a standard 3.5mm jack; allows you to listen to music anytime, anywhere with headphones 2. Durable UV-resistant plastic provides excellent protection and a premium feel; raised control buttons on the rubber frame, with separate volume updown controls; previousnext and mode selection buttons respond with voice prompts for simple and convenient operation 3. Long antenna for better reception, with an extendable antenna length of up to 56 cm; performs exceptionally well in signal reception; AMFM mode ensures stable sound quality 4. Features an FM tuner and can also function as an MP3 player, with an external speaker compatible with USB flash drives or microSD cards 5. Compact size for easy portability 6. MP3 music player supporting TF cards and USB drives; hands-free calling; large LED display; sleep timer