Material: ABS Battery capacity: 1200mAh,Incredible battery life Play time: 5 hours Product size: 130 * 120 * 100 mm, small size and lightweight,You can enjoy music with this small wireless Bluetooth speaker outdoor. Color: black, blue, white, gray, multi colors for you Function usage: 1: Bluetooth link. You can connect your mobile phone Bluetooth to the audio, the transmission distance can reach 10 meters, the Bluetooth signal is stable and convenient to connect. After Bluetooth connection, you can use this stereo to listen to your favorite music in your mobile phone, and you can also make voice calls, which is convenient and clear. Bluetooth version: 5.0 2: You can use a USB flash drive. You can put all the music into the U disk in advance, and then insert the U disk into the audio to listen to the music. Shock bass, very good sound quality. 3: TF card mode. You can put the music you need into the TF Card in advance, and then insert it into the slot to listen to it. 4: It's not just a stereo, it's an FM radio. Radio sensitivity is high, switch at will, you can listen to real-time music radio, news radio, etc., is your good partner in leisure time. 5: AUX cable usage. You can enjoy music for multiple connection ways. We put AUX cable inside.