Acoustic curly tube earpieces are great for security guards and event stewards. This quality earpiece allows for great user comfort when used for extended periods. This earpiece is suitable for Motorola walkie talkies that have a block connector on the side of the radio. Suitable for GP344, GP644, GP388, GP688, GP344R these are great quality at an affordable price. If your requirement is not on this website, do contact me and I will do my best to source and list your required earpiece.