Retevis RB29 heavy-duty walkie-talkie comes to help you. One-key frequency duplication allows you to pair with multiple walkie-talkies of different models at the same time; improve work efficiency. Wireless data transmission between walkie-talkies without a computer; only walkie-talkies with the same scheme are supported. Crystal sound quality Even in a noisy environment, you can communicate normally with your teammates. Waterproof microphone Compact speaker microphone with IP54 waterproof function, shockproof, windproof and dustproof; very suitable for outdoor activities. Long battery life and easy charging Equipped with 1100mAh battery, it provides you with 10-12 hours of standby time, and the independent desktop charger is more convenient and free. Easy to use RB29 has been set to the same frequency and is ready to use out of the box.More features: One-key frequency copy Emergency alarm function Fixed antenna VOX Squelch Voice prompt 1100mAh battery Low battery alert.Retevis RA89 ham radio features IP68 waterproof, allowing you to use your walkie talkie without fearing severe weather. Built-in noise reduction chip reduces environmental noise and offers you a clear reception in a noisy environment. 2500mAh rechargeable battery meets all-day use without frequent charging. Dual Band Dual Display Dual Standby One Key Frequency Copy Noise Cancellation 200Channels Multi Charger way: desk charger/Type C 2Tone/5Tone CTCSS/DCS Scan FM Built-in flashlight. Package Includes: 4 x Retevis RB29 two way radio 4 x Rechargeable battery 4 x Waterproof microphone 4 x Belt Clip 4 x Hand Strap 2 x English User's Manual 8 x Screw 4 x Desktop Charger,1 x RA89 Two Way Radio, 1 x 2500mAh Li-ion Batteries, 1 x Belt Clip, 1 x USB-C Charging Cable, 1 x User Manual