Product Name: Lark 150

Connect the Lark 150 to the Android Phone: Connect the Lark 150 to the iPhone: Note: 1. Connect to the Lark150 LINE OUT interface. 2. Long-press the knob to set it to the 【Phone】 mode or 【stereo】 mode. 3. Turn the knob to set the volume to 10~13. Other audio devices:  While connecting the LARK 150 to audio

1. Preparation 1.1 One laptop with Windows system 1.2 One USB-A to USB Type-C cable 1.3 Put all TX and RX into charge box 2. Firmware Upgrade Note Steps 2.1 Download the related files from the download link and unzip it on the desktop 2.2 Install the driver showing as below: 2.3 Connect the charge box via USB cable and open and run the “6901_upgrader.exe” application 2.4 Click “Refresh” and wait for the device connected, and then click “upgrade” for upgrading 2.5 wait for the upgrade till the program page showing upgrade successful Video Tutorial:

Use time:                   TX:   4h                   RX:   7h Charging Box:   Can fully charge the device 2.5 times Note : The battery life is related to the ambient temperature, and the battery life will vary with different temperatures Charging time:

①【TX】 Reset Hole      ②【RX】 Reset Hole      ③【Case】 Reset Hole If the charging case can’t charge, please try the step as below: Step 1: Take all TX and RX out of the box, then power the box only for half an hour, and use a small needle to poke the hole on the box for

There is noise when connecting to the camera 1. Connect 【LINE OUT】 interface of Lark150 to the camera via 【TRS to TRS cable】. 2. Long-press the knob of Lark150 set it to 【Stereo】 mode. 3. Turn the knob set the volume of Lark150 to 【12~15】. 4. Set the camera record volume to minimun:  SONY Canon Fujifilm Level 1