Overview 1. International advanced wireless audio decoder chip, support all wireless devices. 2. With the FM function, can search radio station broadcast automatically. 3. With Hi-Fi speaker, to make sure the clear and bright sound. 4. Support Micro-SD card and USB card. The wireless working distance is 10 meters. 5. With a LINE IN slot, to provide you with a computer speaker function. 6. Can directly connect the outside devices, for example, tablet PC/TV/cell phones. 7. Support: L2CAP/A2DP(AVCTP/AVDTP/AVRCP), to receive stereo audio signal, can control the audio transmitter and up and down operation through the agreement; support HSP / HFP (Handsfree Profile), with hands-free function, can communicate with people. 8. When play music(TF card/Line in/USB card/Wireless), short press to switch model, press long for power on, press long again for power off. Specification Wireless: V4.2 SNR: Greater than equal 90db Battery: 1200mAh Built-in voltage: 3.7V Normal volume playing time: 2H Speaker driver: Dia Package Content 1 PCS x Speaker 1 PCS x Charging Cable 1 PCS x 3.5mm audio cable 1 PCS x User Manual