Features: Dual-channel 2.4G Wireless USB Microphone, Global Free Frequency. Switchable Simplex / Duplex Transmission, Support Two-way Monitoring and Interaction. Wide Compatibility for Android Phone, Computer, Camera, etc. Intelligent Noise Reduction, Working Distance Up to 30m (Open Area). 3.5mm Analog and USB Digital Two Output Modes. Support Stereo Mode for all Compatible Devices. Rechargeable Storage Case. IPS Screen for Intuitive Operation and Usage. Mono/Stereo Switch, Volume Adjustment and Mute Functions, etc. Internal and External MIC Two Input Modes. Low Latency60dB; SPL: Internal Mic: 120dB; Dynamic Range: Internal Mic: 86dB; Sound Delay:<20ms; Sensitivity: Internal Mic: -26dBFS±1dB; Interface: TX: 3.5mm; RX: USB-C; 3.5mm; Charging Case: USB-C; Battery: TX: 90mAh 3.7V; RX: 90mAh 3.7V; Charging Case: 1000mAh 3.7V; Charging Time: TX: 2 Hours; RX: 2 Hours; Charging Case: 4 Hours; Standby Time: TX: 4 Hours; RX: 4 Hours; Charging Case: 3 times for two transmitters and one receiver charged simultaneously; Net Weight: TX: 14g; RX: 20g; Charging Case: 167g; Dimension: TX: 20 x 53 x 21 mm; RX: 33 x 76 x 13 mm; Charging Case: 96x99x37 mm; Operating Temperature:0℃ ~ 50℃; Storage Temperature:-20℃ ~ 60℃; Notice: 1.Some cameras are not compatible with 3.5mm TRRS-TRRS audio cable, it's necessary to purchase 3.5mm TRS-TRS audio cable by yourself. 2.Don't block the antenna position to avoid any poor signal generated when using. 3.Please power the transmitter and receiver when charging. Tips: VDLive10 USB is universal for USB and 3.5mm interface devices. When used in smartphone, the system will compulsorily choose VDLive10 USB. When used in computer, please follow the steps below: Insert VDLive10 USB into the computer. Click sound setting and set the "Comica_VDLive10" as the inputand output device. Package included: 1 x Transmitter(TX); 1 x Receiver (RX); 1 x Cold Shoe Mount; 1 x Wind Muff; 1 x USB type-C-USB Adapter (for Android); 1 x Charging Cable; 1 x 3.5mm TRRS-TRRS Audio Cable; 1 x Charging Case; 1 x Carry Case; 1 x User Manual; 1 x Warranty Card