ExpertPower Speaker Mic for Motorola BR950 GP140 GP320 GP328 GP329 GP338 GP339 GP340 GP360 GP380 GP640 GP650 GP680 GP1280 HT750 HT1250 IP54 Water and Dust Resistance Rating-designed for indoor/Outdoor environments Light weight compact size, with impact-resistant structure design. 360 Degree reinforced clip increases durability, with 8 settings for user guide 3.5 mm audio input jack for external ear piece for confidential Communication Perfectly suited for hospitality, Private Security and Casino surveillance.