22
Quick User Guide – IRISNotes
TM
Air 3
8. Technical Info
Technical
Characteristics
Ultrasonic Frequency 80KHZ±5K
Battery Type
Receiver
：
lithium battery 3.7V
Pen
：
lithium ion battery 3.7V
Refill Type
Standard metal refill
（
Φ 2.3 mm ± 0.05 mm * 67.0 mm ± 0.5 mm
）
Charging Time
2 hours
Working Time
Receiver
：
charged, working for 10 hours
Pen
：
charged, working for 60 hours
Standby Time
60 days
Timeout
After 15 minutes
Bluetooth
specifications
Standard
Bluetooth Low Energy Core 4.0 specification compliant
Transmission mode
Real-time transmission, Offline saving
Transmission rate
400 Byte/s
Physical
Characteristics
Operating
Temperature
0
ºC
~ +45
ºC
Storage Temperature -20
ºC
~ +55
ºC
Operation Relative
Humidity
20% ~ 90% (25
ºC)
Storage Relative
Humidity
0% ~ 93% (25
ºC)
Dimensions
Receiver Size (L*W*H) 74 mm * 27.68 mm * 11.3 mm
Receiver Weight
27g
Pen Size
149.6 mm * 14.1 mm
Pen Weight
19.8 g
（
including refill
）
