YUEHISY 2 in 1 Bluetooth Transmitter Receiver, 3.5mm Wireless Audio Adapter, Support Multiple Codecs, for Classes Guided Tours Broadcasting

Double Bluetooth Modes: Bluetooth receiver mode allows you to seamlessly connect to smartphones, tablets, or laptops, transforming wired headphones, speakers, or home theater systems into wireless devices.
^^ Sound Codecs Support: This 2 in 1 bluetooth transmitter receiver supports SBC, AAC, and codecs, delivering clear and HiFi sound. Featuring ENC technology, this device ensures clear sound quality. The mute function adds to its versatility, making it suitable for a variety of environments.
^^ Long Battery Life: This 2 in 1 bluetooth transmitter receiver equipped with a built in 550mAh rechargeable battery, it offers up to 6 hours of use in Bluetooth receiver mode and up to 20 hours in broadcasting mode (receiver or transmitter). ^^ 3.5 mm Auxiliary
Output and Input: This 2 in 1 bluetooth transmitter receiver supports both 3.5 mm auxiliary output and input, allowing for easy connection to various devices. This enhances compatibility and usability.
^^ Portable: This 2 in 1 bluetooth transmitter receiver designed with a convenient clamp, you can easily attach it to clothing, bags, or belts, making it portable. It can be used in subways, airports, and events to receive announcements. It also serves as an effective intercom system for guiding tours, teaching, or meetings.