ESSAGER Audio Receiver Wireless Transmitter with Microphone Clip On Bluetooth-Compatible Adapter 【High-Definition Audio Decoding】Experience superior sound quality with advanced audio decoding technology, enhancing your listening experience. 【Bluetooth-compatible 5.3 Technology】Equipped with the latest Bluetooth-compatible 5.3 chip for improved connectivity, stability, and energy efficiency. 【Wired to Wireless Conversion】Instantly transform your wired devices into wireless ones, offering greater flexibility and convenience. 【Long-Lasting Battery】Featuring a built-in 110mAh battery, enjoy up to 14 hours of continuous use on a single charge. 【Integrated Microphone】Built-in microphone enables clear hands-free calling and voice command functionality. 【Stable Signal Transmission】Benefit from a reliable connection with a transmission range of 10-20 meters. 【Clip-On Design】The practical clip-on design ensures secure attachment and easy portability. Specifications: Material: ABS Bluetooth-compatible version: 5.3 Bluetooth-compatible protocol: A2DP/AVDTP/AVRCP/RFCOMM/HFP/HSP/SPP/HID Transmission distance: 10~20 meters Battery capacity: 110mAh Charging time: 1.5 hours Usage time: 15 hours Product size: 50.6*22.4*11.1mm Product net weight: 30g