🎵 [Bluetooth USB Audio Adapter] Simple to use, supports A2dp audio streaming, low latency techonology(need to pair with low latency headphones to active such feature), equipped with most advanced Bluetooth 5.0. (PLEASE NOTE! This is an Audio-Only bluetooth 5.0 TRANSMITTER; it is not a Bluetooth Controller (dongle). This device CANNOT add a bluetooth keyboard, mouse or game controller to your computer or game player) | 👌 [Plug & Play, Supper Easy to Use] No need to install any drivers, simply plugged this B25 to TV's USB port to turn it on and use 3.5mm audio cable to connect to headphone jack. When plugged on devices whose can output USB digital audio like windows pc, Laptop, nintendo switch's dock, it can work without using 3.5mm audio cable. | 👄 [40ms Low Latency] Supports low latency in dual link. For better listening experience, we recommend to use Bluetooth headphones which support low latency (less than 40ms delay), otherwise the delay will be downgraded to noticeable 200ms (SBC codec). | 💪 [Small body, Powerful Performance] With no battery built in, it weights only gram, very easy to hide and won't occupy extra space. Advanced Bluetooth V5.0, Strong CSR 8670 chipset, Enhanced Adjustable Attenna, Dual Stream Support, always on for reconnecting last connected Bluetooth heaphones/speakers. | 🛡️ [Golvery 2 year warranty] We have faith in our product quanlity, thus we provide 60 days money back, 2-year warranty, life time tech support. Any before/after-sale questions or concerns, please feel free to contact us via email and we will reply to you within 24 hours.