Key Features:
Specification
· Bluetooth Range≥40m (≥131 feet)
· Operating Frequency Band: 2.4GHz
· Built-in Buzzer: 80dB max
· Detachable Battery: CR2032, 220mAh, lasts for 12 months
· Size: Φ32 x 8.4mm
· Weight: 9.5g
