Purchase at 45 euros with two devices together with the chargers, detachable antennas, hands-free, belt clips, and wrist straps. Use for hiking, mountaineering, and skiing in winter. The model is essentially the s99 from the same company, but in the Chinese market, it is released with the code t-100. The manual was in Chinese, but I downloaded it in English from the Baofeng website. Plastic "rugged" casing for tough use, does not slip from the hand even with gloves. A big advantage is the USB charging with micro-USB directly to the battery, you forget about its own chargers, you can charge it anywhere, even with a power bank, I tried it with a solar panel and it charges normally but slower, that was the reason I chose this device. You can program it through a PC for other channels, frequencies, etc., but I didn't bother, the 16 channels are more than enough. Good sound quality, you can hear clearly even in moments of low reception. Range with its own antenna is 5km in an open area, it gives 5 out of 5, with a folding 3db antenna that I tried during hiking in Zagorochoria at 10km, it gave a constant 2 out of 5, the voice is heard without interruptions. The battery definitely lasts for 2 days on standby (that's how long we stayed in the mountains) with reasonable use. Good little device with good range, I don't know if the claimed 8W power is true, but it communicates perfectly even with poor reception, the voice is heard without interruptions.