Enhanced signal and stable transmission up to 10 meters with built-in antenna. Lightweight and easy to wear design with elastic push-type back clip. High-definition voice calls, video conferencing, and gaming support with high-sensitivity microphone. Dual mode support with 5.3 two-in-one receiver and transmitter for TV, car speakers, and more. Wide compatibility with headphones, speakers, mobile phones, tablets, keyboards, and mice. Item Name: Audio Transmitter Material: ABS Color: Black Bluetooth-compatible Version: BT5.3 Transmission Distance: about 10 Meters (under No Barriers) Support Protocol: A2DP, HSP, AV RCP, HID Charging Port: Type-C Support Multi-device Connection: Headphones, Audio, Mouse Keyboard Gamepad Battery Capacity: 1000mAh Features: Low Power Consumption, Low Latency, Unique Size Details: L: 7cm/2.76", W: 3cm/1.18", H: 1.9cm/0.75" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Audio Transmitter