1,Rechargable Li-battery 2,Headset micrphone 3,USB/TF card 4,Mini size,Easy to take 5.FM Radio,MCU system V ... -5 New,Cheap Portable Mini Voice Amplifier with Headset Microphone Features*Mini size,easy to take*18W output power ... Packing Include*Amplifier body x 1set*Charger adaptor x 1set*Headset microphone x 1set*14650 Lithium battary x 2pcs*Audio cable ...