Description Are you looking for a professional, yet affordable portable FM radio headphone? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our portable FM radio headphone must meet your needs. It is one of the best choices for you. Features -Color: Black -Material: plastic -Size: 14.00X16.00X8.00cm/5.50X6.29X3.14in Battery: 2 x AA (not included) Receiving sensitivity: ≤18dB Signal to noise ratio: 40dB Quiescent current: 70uA Maximum output power: 3.2mW Working voltage: DC 3V Frequency response: 150-15000Hz Stereo separation: 23dB - The radio channels can be adjusted automatically or manually, easy to use - Can be folded into a small size for easy storage - The external metal antenna has high receiving sensitivity and channel memory function, which can quickly access your favorite programs. - earmuffs bring you a light and comfortable experience - The head beam can be adjusted flexibly to fit different head size The radio channels can be adjusted automatically or manually, easy to use|Can be folded into a small size for easy storage|The external metal antenna has high receiving sensitivity and channel memory function, which can quickly access your favorite programs |Soft earmuffs bring you a light and comfortable experience|The head beam can be adjusted flexibly to fit different head size