Features: Upgrade your auditory experience with the QCC5.4 adapter featuring double mode operating (transmitter/receiver), clear encoding, and 10m+ stable transmission. This versatiled transmitter receiver transforms TVs, PCs, and projectors into wireless auditory sources while simultaneously pairing two devices like headphones and speakers. Ideal for audiophiles seeking lossless music streaming, home theater enthusiasts wanting wireless surround sound requiring cable for conference room setups. Enjoy private movie night via wireless headphones while family listens through speakers, or stream podcasts from your phone to workshop speakers all without rewiring your entertainment. Engineered with advanced stabilization technology and ABS housing, this auditory transmitter maintains uninterrupted connection even in WiFi crowded environments. Specifications: Component: ABS plastic Size: about 60x40x15mm/2.36x1.57x0.59in Receive mode (Receiver mode can connection two devices): phone, tablet, computer, ordinary loudspeaker, car Transmission mode (Transmisster mode can connection two wireless devices): desktop computer, box, loudspeaker, headsets Built-in high-efficiency antenna 10m long-distance transmission Built-in 300mAh large-capacity rechargeable battery, TYPE C socket power supply supports working while charging Package Includes: 1PC wireless adapter 1PC manual note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution