Features: brand new and high quality The receiver for smartphone, ,DSLR Camera and PC. Wireless lapel microphones can be used for course teaching,recording,Live streaming,Office meeting,conference,vocal,interview,vlog,, etc. Comes with 1pc 3.5mm/0.14in round headphone plug.It will help you to connect with PC and DSLR Camera. LED screen will show you battery volume,frequency,adjust display. Operating range is up to 164 feet and the signal can pass through the walls. Specifications: Operating Range: up to 164 feet (50 meters accessibility) Charging mode: USB charging Battery Capacity:450 mAh Charging Input: 5V Material:ABS Option Type:1 Transmitter with 1 Receiver no Dispaly Screen/1 Transmitter with 1 Receiver no Dispaly Screen for phone live streaming/1 Transmitter with 1 Receiver LED Dispaly Screen for phone live streaming/1 Transmitter with 2 Receivers no Dispaly Screen/1 Transmitter with 2 Receivers LED Dispaly Screen for phone live streaming Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1XTransmitter 1XReceiver; 1XCharging cable; 1X3.5mm/0.14in (4 to 3) adapter. 1XUser Manual