Item Type: 2.4GHz Guitar Wireless System Material: Metal Colour: Black Input Impedance: 1M Battery Capacity: Transmitter: 500mAh/3.7V Lithium Battery x 1 (Shipped with built in battery) Receiver: 500mAh/3.7V Lithium Battery x 1 (Shipped with built in battery) Frequency Response Range: 20Hz-20kHz Working Frequency Band: 2.4GHz Total Harmonic Distortion: <0.2% Package List 1 x Receiver 1 x Transmitter 1 x User Manual 1 x USB Cable 1Built in 4 Channels: This guitar wireless system has 4 built in channels, and 4 B1 LITEs can work at the same time to create personalized sound effects 2Strong Compatibility: Not only compatible for ST, for LP type electric guitars, acoustic guitars, electric blowpipes, electric drums, but also with dozens of speakers, compatible with most speaker interface positions 3Diverse Gameplay: This is wireless system with various gameplay and more possibilities. One transmitter can be used with multiple receivers 42.4GHz Guitar Wireless System: 2.4GHz guitar wireless system, with outstanding sound quality, wireless enjoyment, and stable music experience 5Wide Use: The resolution is more professional, and every performance detail is protected, widely used for home practice, recording studio and even stage performances