Key Features:
Specification
· Bluetooth Range≥40m (≥131 feet)
· Operating Frequency Band: 2.4GHz
· Built-in Buzzer: 70dB max
· Detachable Battery: CR2032, 220mAh, lasts for 12 months
· Size: 26.9*26.9*24.8mm
· Weight: 17g
