Support all o equipment with o input interface, enabling wireless o receiver transmission Support automatic search for Bluetooth devices to connect and transmit wireless o Built-in AEC echo cancellation and noise cancellation circuit (ANC) for clear stereo sound Built-in enhanced signal transmission circuit for faster and more stable connections Supports dual lossless o formats Supports 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 Compatible with Android, iOS phones, tablets, and all Bluetooth o devices Supports connection to a mobile phone Plug and play functionality No external power supply required Transmission rate: 4 Mbps Operating frequency: 2480 MHz Supports Bluetooth profiles: A2DP, AVRCP, HFP, SPP, HID Operating current: 43mA Transmit current: 60mA Standby current: 8mA Bluetooth range: over 10 meters Charging method: 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 o devices with o 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 o Adapter 1 x 3.5mm o Cable