Wireless frequency band: 2.4GHz Latency: Less than 5ms<br> Effective distance: Less than 10 meters transmission distance<br> Power Requirements: MIDI built-in rechargeable battery rechargeable via USB<br> Battery life: up to 48 hours<br> Charging device: USB data cable<br> Body size: 24(L)X18(W)x50(H)mm<br> Body weight: 32g whole machine<br> Packing weight: 75g<br> Colour:Black<br> Material:ABS<br> Package Contents:<br> 1 set x wireless midi transceiver<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin