Earphones; Microphones; Athletic equipment, namely, mouth guards; Cell phone backplates; Eyeglasses; Headphones including attached lanyard; Headsets for cellular or mobile phones; Life vests; Noise cancelling headphones; Personal headphones for use with sound transmitting systems; Power strips; Protective eyewear; Protective work gloves; Wireless cellular phone headsets; Hands-free headsets for cell phones; Wireless headsets for smartphones