Support all audio equipment with audio input interface, enabling wireless audio receiver transmission Support automatic search for Bluetooth devices to connect and transmit wireless audio Built-in AEC echo cancellation and ANC noise cancellation circuit for clear stereo sound Built-in enhanced signal transmission circuit for faster and more stable connections Compatible with dual lossless audio formats Support AUX OUT and headphone output Automatic memory connection function for easier and more convenient operation Built-in battery with long standby time Low power consumption Voice prompts for simple and clear operation Smartly compatible with Android, iOS phones, tablets, and all Bluetooth audio devices Support connection to a mobile phone Plug and play functionality No external power supply required Transmission rate: 4 Mbps Operating frequency: 2480 MHz Supports protocols: A2DP, AVRCP, HFP, SPP, HID Operating current: 43mA Transmit current: 60mA Standby current: 8mA Bluetooth range: over 10 meters Charging mode: Micro USB 5V / 0.5A Output connection: 3.5mm stereo interface Input connection: 3.5mm stereo interface Dimensions: 12.5 x 7 x 3.8 cm Weight: 120g Color: Black and White Compatible with Android, iOS system phones and tablets, and all Bluetooth audio devices with audio input interface Specifications: Supports AUX IN Plug and play design Simple product connection Transmission distance up to 10 meters Supports stereo output in transmission mode Wireless Bluetooth Dongle Adapter Package Included: 1 x 2-in-1 Bluetooth Audio Adapter 1 x 3.5mm audio cable