Features: brand new and high quality The receiver for smartphone. Wireless lapel microphones can be used for course teaching,recording,live streaming,conference,vocal,vlog,, etc. Operating range is up to 33 feet and the signal transfer more stable. The transmitter and receiver have built-in rechargeable batteries and support about 4 hours of operation after full charge. The small size and lightweight design can easily carry. Specifications: Operating Range: 33 - 49.21 feet (10-15 meters accessibility) Charging Box Battery Capacity:1200 mAh Lavalier Microphone Battery Capacity:140mAh Material:ABS Color:White,Black Size:8.5x5.1x2.6cm/3.35x2.01x1.02in Note: Please allow 1-2cm 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; 1x Charging Box; 1XCharging Cable with Type C Port; 1XUser Manual;