Features: 1. Up key: Increase frequency, channel number, or setting value 2. Down key: Decrease frequency, channel number, or setting value 3. PTT key: Press the PTT (Push-To-Talk) key to transmit 4. Number key: Input VFO frequency or DTMF dial out, etc. 5. DTMF ON/OFF: Switch between DTMF dialing and function operation 6. LOCK switch: Locks the Up, Down, numeric keys, and function keys Specifications: Item Type: Handheld Mic Material: ABS Size: 9 x 5.5 cm / 3.54 x 2.16 in Compatible Model: TYT TH-9000, TH-9000D Color: Black Quantity: 1 PC Note: No retail packaging included. 1 cm = 10 mm = 0.39 inch Allow 0–1 cm error due to manual measurement. Please ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the image may not reflect the actual color of the item. Package Includes: 1 x Handheld Mic