1. Waterproof grade: not waterproof2. Strong and durable shell 3. Sturdy metal , can rotate 360 degrees 4. Hand microphone with 3.5 headphone jack 5. High-quality speakers and microphones provide clear audio communication.trumpet:Size: 36mmSound pressure: 94dB3dBImpedance: 8 ohm15 percent Audio: 1Wmicrophone:Type: Electret MicrophoneSize: 9.7x6.7mmFrequency: 20-16000HZSensitivity: -38dB2dBImpedance: 2.2KohmApplicable models: for XPR6300 XPR6350 XPR6380 XPR6500Headphone models are compatible with the above, XPR6300 XPR6350 XPR6380 XPR6500 XPR6550 XPR6580XiR P8200 XiR P8208 XiR P8260 XiR P8268 XiR P8608 XiR P8660 XiR P8668DP3400, DP3401 DP3600, DP3601, DP4400DGP4150 DGP4150and DGP6150 DGP6150andAPX4000 APX6000 APX6500 APX7000 GP328D GP338DColour:blackMaterial:ABSPackage Contents:1 x walkie talkie microphoneOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.