Bluetooth Speaker TG636 Wireless Solar Flashlight External Antenna Radio Speaker

Connection method Bluetooth connectivity Frequency Response 100HZ-20KHZ Signal to noise ratio ≥75dB Number of speakers 2 of them Effective distance 15 meters Cabinet material Plastic Appearance size 180*70.6*72.7MM colour Blue, black, red, silver gray, Power supply mode USB Waterproof grade Not waterproof Bluetooth version five point three Built in battery capacity 1200mAh-2000mAh (inclusive) Rated power five Shell technology ABS plastic Rated voltage three point seven Additional features Insert card Supporting formats USB flash drive, TF card, Bluetooth speaker unit 55mm*2 Is there a built-in battery Built in battery