FM Radio Portable Mini Pocket Radio Small Radio Transistor with Power First-rate for Walking Jogging Travel. Multi-scene application: suitable for cycling in various places, morning exercise, walking, and more. Receiving frequency range: FM: 64-108mhz, Receive sensitivity: 5dB, Product size: 3*1*0.8 in, Battery: Two aaa batteries, Minimum working voltage: 2.2v, Maximum output power: 2.4mw, Maximum current: 26MA, Resolution sound: ≥32DB, Distortion: ≤ 1%, Headphone: Φ3.5MM / 32ΩX2. Packing List: 1*Host, 1*Lanyard