<p>Product Features: Adopt Bluetooth 5.1 chip design, stronger compatibility and stability. Two-in-one Bluetooth receiving (RX) and Bluetooth transmitting (TX).</p> <p>Built-in DSP decoding chip, heavy bass effect, supports three levels of adjustable gain. Upgrade the NFC function, and the mobile phone sensor can be connected with .</p> <p>Controllable indicator light, soft and not glaring, the brightness of the light increases\/decreases accordingly with the volume. Built-in 1200mAh rechargeable lithium battery, continuous listening to music for about 8 hours, battery life up to 30 days</p> <p>Support U disk\/TF card playback and launch, support MP3\/WMA\/\/WAV\/DTS\/A52\/FLAC\/AAC\/AIF\/\/APE format.</p> <p>Support 5~8 meters red private model external remote control, mode\/signal\/volume\/up and down song\/mixing\/microphone and other operations.(NOT SUPPORT POWER ON). Built-in 6.5mm high-definition microphone, which supports microphone access for singing, and built-in anti-howling design.</p> <p>Product Specifications:</p> <p>Product Name: Multi-function Bluetooth Audio Adapter</p> <p>Product version:M16 Pro Optical Version </p> <p>Product Model:</p> <p>M16 Pro (without antenna and with optical fiber)</p> <p>Bluetooth Version: Bluetooth V5.1</p> <p>Battery Capacity:3.7V\/1200mAh(UN38.3)</p> <p>Input Parameter: DC 5V-1A(MAX)</p> <p>Charging Time: About 1.5 hours vaorlo</p> <p>Using Time: Listen to music for about 8hours and stand by for 30 days</p> <p>Transmission Range: M16 About 10-30m \/ M16 Pro About 10-20m</p> <p>Support Bluetooth Protocol: A2DP\/AVRCP\/HFP\/</p> <p>Optical parameter: 192KHZ\/25MBPS(Only for M16 Pro Optical Version)</p> <p>Support Music Protocol: MP3\/WMA\/\/WAV\/DTS\/A52\/FLAC\/AAC\/AIF\/\/APE</p> <p>Material: plastic+metal</p> <p>colour: As shown</p> <p>Package Contents:</p> <p>1 x M16 Pro Bluetooth Audio Adapter</p> <p>1 x 3.5mm Aux Cable</p> <p>1 x RCA Audio Cable</p> <p>1 x Type-C Charging Cable</p> <p>1 x Remote control</p> <p>1 x English User Manual</p> <p>(Note:U-Disk\/TF Card not included)</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>