It has a PTT key and an external speaker, you can also use it with headphones because it offers two speaker modes.2. Light weight, easy to carry. Whether in our pockets or hanging around our necks, we can easily converse with others.3. The walkie-talkie is an ideal choice for improving team communication, because it is easy to hide in the pocket anddoes not affect the use, thereby improving the efficiency of team communication.4. The battery capacity is 500mAh, and the walkie-talkie can work continuously for 8 hours when working for a long time.5. It can be charged with a USB cable, which is convenient and safe. 6. Ideal for employees in hotels, shopping malls,supermarkets, hair salons, hospitals, or anyone who needs to coordinate interactions between different teamsor departments. Specifications: Condition: 100% New Item Type: Mini Walkie Talkie Material: ABSColor: As Shown Frequency Range: UHF 400-470MHz Transmission Power: 0.5W Channel: 16 Channels BatteryType: Lithium Battery Battery Capacity: 500mAh Working Mode: Single Face USB Charging Cable: SupportPacking List: 2 x Mini Walkie Talkie 2 x Earphones 2 x Earphone Box 2 x Charging Cable 2 Lanyard 1 x InstructionsNote: 1. Please allow 1-3cm due to manual measurement. 2. The monitor is not calibrated the same, the colorof the item shown in the photo may be slightly different from the actual item. Please refer tothe actual product. UHF 400-470MHz Transmission Power: 0.5W Channels: 16 Channels BatteryType: Lithium Battery Battery Capacity: 500mAh Working Mode: Single Sided USB ChargingCable: Support Packing List: 2 x MiniWalkie Talkie 2 x Earphones 2 x Earphone Box 2 x Charging Cables 2 x Lanyard 1 x Manual