Durable PTT button allows push for hands-free calling; sensitively captures clear and loud sound for transmissionProduct name: GP328 Earphone MicphoneProduct model: GP328 Earphone fit for Motorola AccessoriesWeight: 38gLength: 130cm (+-5cm)VOX: Adjusts the soundPTT: TalkieScope of application:Relevant personnel: police, army, bodyguards and businessman.Related environment: a nightclub, bar, paintball, security, hotel, hotel, airport, casino, manufacturing plants, meetings, concerts, warehouse and noisy environments.Applicable models:fit For Motorola Walkie TalkieMTP700,HT750, HT1250, HT1250LS, HT1550XLSGP140, GP320, GP328, GP329, GP338, GP339, GP340, GP360, GP380, GP640, GP680, GP1280MTX850, MTX850LS, MTX900, MTX950, MTX960, MTX8250, MTX8250LS, MTX9250PR860, PRO5150, PRO5350, PRO5450, PRO5550, PRO5750, PRO7150, PRO7350, PRO7450, PRO7550, PRO7750, PRO9150,PTX700, PTX760, PTX780Package:1 piece Earhook Earpiece fit for Motorola Walkie Talkie GP328