This is a NUX B-2 transmitter and receiver set. Body only. No box, manual, or charging cord included. I purchased this used on Mercari and used it a few times, but I'm selling it because I'm switching to another brand. Please check the photos for the condition. Operation has been confirmed. - Input Impedance: 1MΩ - Internal Processing: 48KHz/32bit - Delay Time: Less than 5msec - Transmission Distance: Approximately 30 m - Frequency Band: 2.4GHz ISM band - Frequency Channels: 4 channels - Size: 73(L) x 40(W) x 55(H) mm - Weight: 57 g It will be shipped via Yu-Packet Post Mini with shock-resistant and waterproof packaging. Feel free to ask any questions in the comments.