USB Wifi key -USB Bluetooth adapter for PC 4.0 Bluetooth Dongle receiver for desktop computer, laptop, mouse, keyboard, printer, headset, Highlights generic brand USB Bluetooth adapter for PC 4.0 Bluetooth Dongle receiver for desktop computer, Laptop, Mouse, Keyboard, Printer, Headset, Description: 1. This portable and lightweight wireless audio transmitter and receiver is an ideal wireless Bluetooth audio transmission solution suitable for various situations and uses. 2. Transmitter Mode: Wirelessly transmit audio from non-Bluetooth TVs, stereo systems, or CD players to Bluetooth headphones or speakers. 3. Receiver Mode: Wirelessly transmit audio from Bluetooth-enabled cell phones, tablets, or computers to a wired stereo, speakers, or headphones. 4. This product is compatible with most Bluetooth products on the market, with low output delay and stable performance. Widely used in computers/laptops/tablets/home stereos/headphones/smartphones/MP3 players and CD players, etc. 5. Receiver mode and transmitter mode specification: Model: XT-413 Technology: BT5.0, AVRCP (receiver mode only), A2DP Operating range: maximum 10 meters / 33 feet (without obstructions) Pairing name (receive mode) : Car Music Transmitter mode: Red LED lights Receiver mode: Blue LED lights Product size: 34x17x10mm Weight (bare metal parts): 15g Package includes: 1x Bluetooth 5.0 audio transmitter/receiver adapter 1x Dual-head 3.5mm audio cable 1x chinese and english manual