... Rechargeable battery 3.Accrssories: Microphone 4.Suit for teacher, tour guide ,promo action ,army Functions features::All wave band digital mediate ... radio recept, 500 radio memory permanently , Auto search , manual change, auto storage , manual storage1000mA Li-ion battery ,super long time up to ... 29mmColor: Red, Blue, Silver, Grey :Customer Service:Warranty: 1year portable mini speaker with DSP radio