1、Wireless connection for playing songs, stable and convenient, more reliable to use. 2、1200mAh built-in large capacity battery, rechargeable and durable, meeting your needs. 3、Support memory card and U disk up to 32G for playing audio files of MP3/WMA format inside. 4、Equipped with LED light in the eyes for colorful lighting effect during music playing. 5、FM radio function, built-in 87.5-108MHz FM digital radio module, which can automatically store 50 stations. 1 x Speaker1 x USB Cable1 x User Manual Item Type: SpeakerCondition: 100% brand newColor: YellowBluetooth Version: For Jerry 4.2Battery: 1200mAh lithium battery 18650 Output Power: 5WSNR: 50dBFrequency Response Range: 50-20KHZLoudspeaker: 78mm 4Ω 5W x 1Charging Port: Micro 5PAudio Interface: 3.5mm