Product Information 1. Bluetooth: 5.0 EDR, A2DP, HSP, AVRCP 2. Frequency: 2.4GHz-2.48GHz 3. Bluetooth transmission distance 10 meters 4. Bluetooth reception range 10 meters 5. Charging voltage: DC 5V 6. Battery 300mA 7. Working time: about 6 hours 8. Bluetooth transmission function: Can connect 2 pairs of Bluetooth headsets at the same time 9. Weight: 60g 10. Accessories: Host*1, 3.5mm audio cable*1, charging cable*1, manual*1 11. Packing size: 92 x 71 x 34mm 12. Color: black The dual port Bluetooth transmitter has a portable, compact and stylish design. It can be paired with two Bluetooth receivers such as headphones and speakers at the same time via the Bluetooth transmitter. Live wirelessly and distraction-free This Bluetooth transmitter can Wirelessly stream stereo audio from non-Bluetooth audio sources such as TVs, MP3s, CD players, PCs, or e-book readers to Bluetooth-enabled headphones, speakers, or receivers. So you can wirelessly enjoy high-quality music or late-night shows without disturbing your loved ones' sleep. Zero Latency Reduce Bluetooth latency with low-latency Technology for perfectly synchronized, high-quality sound. The Bluetooth connection is more stable and the wireless range is more than 10 meters. High-definition audio The Bluetooth receiver uses the 5.0 low latency technology that delivers high-fidelity audio without delay, eliminates audio lag, provides excellent sound quality and powerful wireless audio transmission capability. Compatibility This Bluetooth transmitter is compatible with TV/PC/Car/Home Stereo/Wired Speakers, etc. Built-in 300mAh rechargeable battery, which can be used for 7-8 hours after charging about 1.5 hours.