Description: Name: FM Radio Number of memory storage stations: 50, with shutdown memory function; Frequency receiving range: FM:64-108MHz; Receiving sensitivity: 5dB; Bluetooth-compatible connected device name: C23; Bluetooth-compatible version: V5.3; TF card capacity: maximum support 64G (not included); Lithium battery capacity: 200MAH; Working hours: >8 hours; Standby time >21 days; Charging time < 1 hour; Operating distance: >15M; Operating temperature: -30 ~ 55°C; Receiver frequency range: FM:64-108 mhz FM; Receiver sensitivity: 5~8db; Radio program: 50 +; Weight: 18g; Size: 6.8cmx2cmx1.2cm; Packing list: 1 x FM radio 1 x USB cable 1 x headphone 1 x User manual 1 x Packaging box Note: Due to manual measurement, please allow 1-3cm differences, thanks (all measurements are in cm, please note that 1cm=0.39 inches). There may be color difference due to different computers or smartphones, please forgive me!