Feature: 1. GPS Function: Support longitude and latitude location. 2. Voice Record Function: Built-in 1G memory card to record TX & RX voice continuously for 9 hours. 3. Larger keyboard button than dm-860/dm-5r/dm-1701/dm-1702, so that you can easily operate with your finger. 4. Larger full-color LED screen. High sound quality. Support high/low power mode. 5. Dual Band VHF 136-174MHz and UHF 400-470MHz. 6. Support SMS function, so that the message can be sent when it is inconvenient to voice call. 7. Larger capacity lithium battery. Equipped with a 2200mAh lithium battery. Up to 18 hours work time and 48 hours standby time. It lasts 30% longer than the other for DMR radio. For DM-X is light weight and handy. 8. More keypad operations. Channel names, TX & RX frequencies, channel number, tones can be programmed through the keypad. Users can also customize the top and side buttons for their favorite functions. 9. Talking Range can be up to 5km (3 Miles) under the visible range. There are some factors that affect the talking range of a two-way radio, such as weather, exact frequency used, and obstructions etc. Specification: Name: DM-X Walkie Talkie with GPS Applicable Model: For Baofeng DM-X Frequency Range: VHF:136-174MHz, UHF:400-470MHz (Dual Band) Memory Channel: 1024 Operating Voltage: DC 7.4V Frequency Stability: ±1.0ppm Operating Environment: -30℃ - +60℃ Transmitter Output Power: High:5W Low:1W Adjacent Channel Power: ≤65dB ≤60dB Output Consumption: Analog≤1.6A Digital≤0.9A Audio Response: +1~3dB Standby Current Consumption: ≤0.18A Digital Protocol: ETSI-TS102 361-1,-2,-3 Modulation Distortion: ≤5% Vocoder Type: AMBE+2 TM FM/FM Modulation: 16K￠F3E, 25KHz 141K￠F3E, 20KHz 11K￠F3E, 12.5KHz 4FSK/4FSK Digital Modulation: 12.5KHz for data:7K60FXD 12.5KHz for data and voice:7K60FXE Signal-to-noise(wide/narrow): ≥45dB, 25KHz ≥40dB, 12.5KHz Antenna Port Spurious: 9KHz-1GHz: ≤-36dBm 1GHz-12.75GHz: ≤-30dBm Receiver Analog Receive Sensitivity: -122dBm (12dB SINAD) Digital Receive Sensitivity: -122dBm (BER≤5%) Audio Power: 1W Audio Distortion: