[FM Radio Speaker]With FM Radio signal, mini radio speaker can search channels automatically. Number buttons are for MP3 selection and FM Radio station easily. Direct manipulation and get started quickly. [High Fidelity Sound Quality]Loud sound and high fidelity sound quality is perfectly suitable for the aged. It's also available for earphones connected with 3.5mm earphone jack. [TF / SD / MMC Card & U Drive]As a speaker, it can play music from TF / SD / MMC card and U drive. In MP3 mode, when powered off, it can playback the current MP3 when powered on next time. [Convenience]With 1.5-inch display screen and unique plastic buttons, user-friendly, durable and eco-friendly. Lanyard and back clip are convenient for you to take outside. [Endurance Time]Replaceable 850mAh battery also can be charged via included Mini USB charging cable; large battery capacity supplies long standby time, which gives you music enjoyment all the day. Model Number: L-938 Display Screen: 1.5 Inch FM: 87.5MHZ-108MHZ Decoding Range: 8-320 Kbps Dynamic Range: 92dB Channel Separation: 69dB Output Power: 3W (max) Speaker Size: 66mm Output Impedance: 4ohm SNR: 87dB Battery Capacity: 850mAh Charging Time: about 2-3 hours Colour:White Material:Metal+Plastic Package Contents: 1 x Radio