Golvery Bluetooth 5.3 Transmitter And Receiver, 2 In 1, 2 Devices Pairing Product Features ??2-in-1 Bluetooth Adapter?In TX mode, it is used to connect to the non-Bluetooth devices like TV/PC/DVD/CD/MP3/Projector and other music player, transmit audio to Bluetooth headphones/speakers. In RX mode, it is paired with smartphone, tablet, iPad, laptop to play music to home theater/sound bar/wired speaker. ??No Audio Delay?Compatible with APTX-LL and FastStream codec to support low latency audio. Reduces the audio delay to unnoticeable 40ms. Provides no lip sync delay audio experience. NOTE: to achieve low latency function, the pairing Bluetooth headphone/speaker must support APTX-LL or FastStream codec. The APTX-codec is not a low latency codec. ??Great Quality Stereo Sound?Equipped with advanced Bluetooth chipset and latest Bluetooth V5.0 technology. Upgrading the old non-Bluetooth audio devices to enable Bluetooth function, provides fast transmission and stable connection. Ensure to offer high-quality stereo sound. ??Multi-Connection?Supports up to 2 Bluetooth headphones/speakers simultaneously in TX mode; Realizes low latency function if both headphones can support APTX-LL or FastStream codec. Can be paired with two Bluetooth sound source like smartphone or tablet in RX mode. But it can only receive sound from only once device. Convenient to switch. ??Working While Charging?The built-in rechargeable battery can last working for 14 hours after a 2-hour full charge. But our BTI-018 can work fine while it is charging. It will power off to reset when you plug the USB cable to charge it. Please turn it on to make it continue to work while charging. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!