H8S-2T Wireless Two-way Voice Pager 1. Two-way intercom, press and hold the TALK button to talk directly. 2. Mobile call, mobile intercom. 3. The actual call distance is 1000 meters, from the 1st floor to the 8th floor. 4. The appearance is slim, the thickness is only 18mm, and it is easy to carry. 5. The battery is 1800 mAh polymer lithium battery, which works 5 times a day, 30 seconds each time, and works for about 1 week. 6. The button adopts plastic + silicone structure, and the surface is high-gloss UV process, which feels comfortable. 7. Intelligent and humanized design, with intercom light and power light display, it is clear at a glance. 8. Put it on the charging stand when on standby, intelligent charging, never out of power. 9. Parameters: Power supply: polymer lithium battery Battery power supply: DC5V1A Working temperature: -20 degrees ~ 55 degrees Transmission distance: about 1000 meters in open space, 20-100 meters behind walls, 1st to 8th floor Working frequency: B-grade frequency 462MHz A-grade frequency 434MHz Working time: about 3 days after one charge Charging time: about 5 hours to fully charge Music ringtones: 38 ringtones Ringtone volume: 3 levels of adjustment (volume adjustment button in standby mode) Call sound: 3 levels of call volume adjustment (volume adjustment button when calling) Dimensions: 116x56x18mm Charging stand size: 70x56x29mm