Chemical products used in agriculture and horticulture, including natural and artificial fertilizer, earth for growing plants

Public address systems; Capsule microphones; Electric leads for microphones; Guitar microphones; Hand microphones with directional characteristic; Headphones for microphones; Microphones; Microphones for record players; Motion control booms for use with microphones; Tripods for microphones; Two-way wireless communication systems; Wireless communication apparatus; Wireless high frequency transmission instruments; Wireless receiving apparatus; Wireless transmission apparatus for remote control; Wireless transmitters