High sensitivity. Built-in energy saving battery enables lower power consumption Advanced chip adopted, stable performance without frequency hopping Digital LCD screen shows the Frequency & Remaining Battery Power & Band Status, etc 31-level volume adjustment, adjust to the volume you want precisely Defaults to stereo sound, with mute button(short the power switch), you can set/delete radio station presets Interface: Micro-USB, 3.5mm Earphone Jack Frequency: FM 64-108MHz, AM 522-1620KHz(9K) / 520-1710KHz(10K) Sensitivity: FM ≤8 uv, AM ≤20 mV/M SNR: FM ≥30 dB, AM ≥40 dB Maximum Working Power: 6.5MW Built-In Lithium Battery: 500mA 3.7V Earphone: Diameter 3.5mm, 32Ω x 2 (The product printed words depending on the batch, but this does not affect use) Color: A Black Material: ABS Package Contents: 1 * Mini Radio Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.