Features:1: Use advanced digital audio signal processing technology (DSP) and FM phase-locked loop modulation technology (PLL) to make the sound quality more realistic, the performance more stable, and the working frequency has no deviation for a long time. The reception signal is good, and 22 stations can be received locally. 2: LCD display is more intuitive and accurate, with extremely low power consumption and noise interference.3: It has the functions of automatically searching for radio stations and storing radio stations, and is easy to operate and use. 4: Built-in 30-level digital volume adjustment, which can be completed by key operation. 5: Automatically memorize the data power failure. 6: Quartz crystal is used to stabilize the frequency, and the emission frequency will no when the temperature changes.7: The whole frequency band (76-108MHZ) automatically searches the signal frequency band and stores it in memory.8: Built-in rechargeable lithium battery and charging circuit, it can be with a mobile phone charger, the red light is on when charging, and the green light is on when fully ;Product parameters:Material: plastic+metalColor: as shownPCB board size: 6.3CM x 4.4CMShell size: 11.9CM x 8.8CM x 2.7CMSupport speakers: within 8 ohms and 5WOutput power: 5WFrequency range: 50Hz-18KHzChannel: monophonic with speakers, dual-channel with earphonesOrdinary stereo earphones with a diameter of 3.5mm can be used, if you buy one with a shell, you need to pay attention: the diameter of the earphone handle must be less than 7mm Otherwise, it cannot be inserted.Receive frequency adjustment range: campus radio 87.0MHz-108.0MHz, open campus radio 76.0MHz-108.0MHzEquivalent noise: 30dBSupply voltage: 3.0V-5.0VNeed to weld by yourself, excluding .Package Contents:1 x DIY Parts SetOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.