1、3.5mm jack: Colleagues who enjoy radio programs and music will not cause trouble to those around them. 2、Portable design: Small size, 3*1*0.8 in, 1.1-inch LCD display, intuitive operation buttons, bring great convenience to users. 3、Manual saving: This product adopts DSP digital processing technology chip, the FM signal reception is stable, and 20 broadcast FM programs can be manually saved. 4、Hanging neck design: retro MP3 player shape, easy to carry, hang on the items you want, travel without interruption. 5、Wide application: It is 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 Batteries: 2 x AAA batteries (2x1.5 AAA) Minimum working voltage: 2.2v Maximum output power: 2.4mw Maximum current: 26MA Resolution sound: ≥32DB Distortion: ≤ 1% Headphone: Φ3.5MM / 32ΩX2 Features: There are two ways to store stations: automatic search and storage of radio stations/manual automatic search of radio stations Number of memory storage units: 20 With shutdown memory function Digital display function: can display FM frequency point, volume level, take station address numbe 1* Host (excluding battery) 1* Lanyard 1* Instruction Manual 1* Earplugs