CohesiveTech Baofeng BF-888S Rechargeable Long Range Walkie Talkie Two Way Radio (pack of 4) Frequency Range: 400-470MHz; 16 channels; 50 CTCSS/105 CDCSS Long standby time,1500mAh Li-ion battery; Low Voltage Alert, Intelligent Charge control unit. 16 Memory Channels For Easy Paring With, Excellent Anti-interference and Sound Clearness Suitable for Security Guard Workplace Construction Area Communication and Outdoor. Package Include 4 PCS Walkie Talkies 4 Headphones and Other Attachments.