Baofeng BF-88ST - Enhance your old stuff! As the upgraded version of BF-888S, our new BF-88ST shows better performance on use and safety. Reviewed thousands of feedback from active customers, BF-88ST has superior quality at the following three main aspects: Better Charger ChipThe upgraded charger chip provides higher protection. The new chip saves 25% charging time than the old version's. More important, it has higher safety performance. New Integrated Antenna Talking range extended. The new antenna is protected in a sealed shell, becomes non-removable but sturdy. The transmission becomes more stable and provides a crystal clear voice. Upgraded Battery Contacts Battery failure rate reduced. The old damageable contact spots have been upgraded to contact blades, which make the battery more durable and steady. ● Typical Use: 25h ● Continuous Use: 9h How to protect kids from receiving unwanted signals? You can set up different QT / DQT(CTCSS / DCS) via programming software. When CTCSS/DCS is set, then within the communication range, your kids can only receive signals from the same frequency with the same QT/DQT setting. Technical Specification: Frequency Range: FRS Battery Capacity: 1500 mAh Output Power: 2W/0.5W (High/Low) Working Temperature: -10°C … +50°C Squelch Selectivity: < 0.2 μV Working Voltage: DC 3.7V Audio Power: 1W Features: ● VOX ● TOT ● Squelch ● Monitor/Alarm ● Voice Broadcast ● QT/DQT(CTCSS/DCS) ● Busy Channel Lockout ● Battery Save Function ● Low Battery Indication