Battery: Rechargeable lithium battery (3.7V)
 
 Continuous use for 2 hours, more than 300 recharges
 
 Battery life: discharge
 
 Charging power supply: MICRO USB (DC5V; 1 60MA)
 
 Type of protection against electric shock: Class II equipment, internal power supply equipment
 
 Degree of protection against electric shock: BF type product
 
 IPX4 (ultrasound probe area), IPX1 (anti-liquid penetration degree:
 
 The rest of the shell) has flammable gas
 
 Not suitable for environments with flammable gas
 
 Working mode: continuous work
 
 Product size: 46MM39MM135MM
 
 Product net weight: 150 G
 
Communication method: Ultra-low energy Bluetooth 4.0.