Features: and high quality, CD-level Lossless Sound Quality: Support high-fidelity stereo sound quality, clear sound quality without noise, enjoy the beautiful world. Wireless 5.0 Responds Quickly, Refuse to Delay:Use smart wireless 5.0 chip to ensure signal stability. Fast operation, bid farewell to delays. Two sets of earphones connected, support one for two functions, two wireless headsets or speakers are connected at the same time. Built-in rechargeable lithium battery can be used continuously for 6 hours. Small size, easy and portable to carry and receive, with a 3.5mm port and a Type-C port. Suitable for TV sets, desktop computers, notebook computers, BT headsets, BT speakers, and other devices. Transmitter Mode For TV/PC/Projector/Power amplifier/TV Box Ect. How to use it ? 1. Use 3.5MM AUX Cable connect transmitter and TV or Computer or DVD or others device, then open the transmitter (press the button about 3-4 seconds). 2. Open the bluetooth headset, must under ready to pairing. 3. The transmitter will auto connect your bluetooth headset or bluetooth speaker, then the TV or Computer or DVD sound will into your bluetooth headset or bluetooth speaker, done ! Specifications: Name: Multipoint Bluetooth Audio Transmitter Model: C31 Material: ABS Bluetooth Chip: BT 5.0 Interface: 3.5mm,TYPE-C Battery: 300mAh Work Time: 6 hours Battery: Built-in battery Frequency rate: 2.4GHz-2.48GHz Charging voltage: DC 5V Bluetooth transmitter function: can connect 2 sets of Bluetooth headsets at the same time Material: plastic Color: Black Package Contents: 1x Bluetooth Audio Transmitter 1x 3.5mm Auido Cable 1x Charging Cable 1x User Manual