Portable FM 87.5-108MHZ 4.2V 4Ω Radio TF SD Card AUX Loop Play Speaker MP3 Music Player

Features SupportTF card for SD card USB audio inputSupport speaker and headphone outputBuilt in rechargeable lithium battery10 buttons to choose MP3 music directlyFM radio with clear audio channels You can press the number keys to select the stationThe display the volume level is clear at a glancePower failure memory function turn on and connect the song before power offEasy to useFrequency 87 5 108MHZWorking voltage 4 2VRated impedance 4Power 3WMP3 decoding rang 8 320k bpsMP3 S N 87dBMP3 Dynamic rang 92dBMP3 Channel separation 69dBFrequency response 20Hz 20KHzDistortion 0 05Speaker 66mm 4 3WPower output 3W maxBattery 3 7V 800mAh Li ion batterySize 125 x 36 x 73 5mm 4 9 x 1 4 x 2 9inch Note Please allow 0 5 1cm differences due to manual measurement Due to the light and screen difference the items color may be slightly different from the pictures Package Included 1 x Portable Radio built in battery 1 x User Manual1 x USB Charging Cable