Welcome to Our Store! 1. Multifunction: Bluetooth 5.3 Audio Receiver Adapter Supports USB Flash Drive, Hands-Free Calls, NFC Connection. Supports USB Portable Storage Device, Can Play Music Without Internet Connection 2. Automatic Power-On, Stable Signal: NFC Bluetooth Receiver Powers On Automatically When Connected to Power, Making It Ideal for Use in Cars or Other Vehicles. 10m/32.8ft Long-Range Transmission, Built-In Antenna, Reduces Signal Interference 3. Dual Device Connection: Bluetooth 5.3 Audio Receiver Adapter Can Connect to Two Devices Simultaneously, Two Mobile Phones Can Switch as Needed, Listen to Songs and Watch Movies at the Same Time 4. Multiports, Wireless Playback: Bluetooth Receiver Supports Simultaneous Connection of 3.5 mm Audio Port and 2 RCA Audio Ports. Common Speakers Connected to 3.5 mm Audio Port, Without Bluetooth Functionality, Can Also Play Wirelessly 5. Call, Navigation: Bluetooth Audio Adapter Can Answer, Redial, Hang Up or Reject Calls with a Single Button. Supports Voice Alerts from Existing Navigation Apps to Ensure Safe Driving Without Looking Down Product Type: USB Bluetooth Adapter Material: ABS Usage: Bluetooth Adapter Output Interface: 3.5 mm Stereo, RCA Left and Right Channels Function: USB Flash Drive, Hands-Free Calls, NFC Connection Bluetooth Protocol: AVRCP, A2DP Bluetooth Version: 5.3 (Compatible with 5.0) Frequency Range: 2400-2483.5 MHz Output Power: 28mW Signal-to-Noise Ratio: ≥90dB Forward Transmission Range: Approximately 10m/32.8ft 1 x USB Bluetooth Adapter 1 x Type-C Charging Cable 1 x 3.5 mm Audio Cable 1 x RCA Audio Cable 1 x English Manual