Brand Name: RETEVIS Origin: Mainland China Waterproof / Water-Resistant: IP67 Maximum Range: 5km-10km Model Number: Retevis Ailunce HD1 Is_Display: Yes Walkie Talkie Type: Portable Hign-concerned Chemical: None Battery Capacity(mAh): 3200 Material: ABS+PC Storage Channel: 3000 Frequency Range: 146-174 MHz & 400-470MHz Dimensions: 150x64x40 mm Output Power(w): 3w-5w Certification: CE Certification: FCC Certification: RoHS Digital technology: TDMA Vocoder: AMBE+2TM Dustproof Waterproof Grade: IP67 Battery capacity: 3200mAh large capacity Antenna type: SMA-F Accessories jack: Multi-pin type Voice Prompt: Chinese/English Mic Gain: -10/-9/..../+9/+10 Side key settiing: Short press/Long press function Zone: 256 Channel type: Analog/Digital Work mode: Simplex/Repeat/Double Slot Radio ID: 32 Color code: 16 Time slot: Slot 1/Slot 2 Contacts: 200000+1000 Priority contacts Call type: Private Call/Group Call/All Call Encryption Type: Normal/Enhanced Squelch Level: 0-9 VOX level: 1-9 Time out timer: Off/15s-600s FM Radio: 76-107.95 MHz Three Scan Modes: TO/CO/SE Support DTMF: Yes GPS: optional function Certificate: CE/FCC/IC Audio Connector: Compatible with multi-pin Usable programming cable: J9131P