1. Scope of Application: Designed for all car audio systems with AUX IN audio input functionality. 2. Compatibility: Bluetooth 3.0+ compatible (supports A2DP, AVRCP). Lossless audio transmission with standard 3.5mm audio output. Frequency response: 20Hz-20KHz. 3. Button Backlight Design: Easy-to-use controls with backlighting for convenient operation. Simple installation to upgrade your car stereo with wireless Bluetooth audio capability. 4. Hands-Free Functionality: Supports Bluetooth hands-free calling and music streaming. Compatible with most smartphones for seamless connectivity and voice control support. 5. Media Control: Enables basic media playback controls including play/pause, next track, and previous track. Easily manage your music playlist from within the vehicle. Name: Car Bluetooth Audio Receiver MP3 Bluetooth Version: V3.0+ Frequency Range: 2.4GHz Output Power Class: Class 2 Bluetooth Modes: HFP, A2DP, AVRCP Wireless Range: Up to 30 feet Input Voltage: 12-24V Working Voltage: DC 5V Working Current: DC 5V / 8-15mA Output Current: 2.1A Power Source: Cigarette lighter adapter Compatibility: Works with mobile phones, tablets, and various USB-powered digital devices. Note: Installation guide not included. Please verify compatibility before purchase. Tips: Product design may vary slightly between batches. Minor differences in appearance or color may occur and do not affect performance. Color: Black Material: Plastic Package Contents: 1 x Audio Receiver Note: Other accessories are not included. Lighting conditions and display settings may cause slight variations in color between the product image and actual item. Measurement tolerance: +/- 1-3cm.