Features: Bluetooth version 4.2. Lower power saving mode. Super bass passive diaphragm low frequnecy system. MP3/WAV audio decoding program, support TF card storagemusic playback (up to 32GB). Built-in high-sensitivity surround radio antenna and supports FM 87.5-108MHz channels to automatically search the radio station. Built-in 4000mAh large capacity 18650 Lithium battery. Support QI standard wireless charging function of cellphone. Wireless charging conversion rate72%. Support 3. 5mm audio input. Can be connected to various types of audio equipment.