1. Headphone parameters
Bluetooth version: V5.0+EDR
Wireless frequency: 2.4GHZ
Support agreement: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3
Transmission distance: 10 meters
Battery capacity: 50mAh
Charging voltage/current: 5V/1A
Play/talk time: about 4 hours
Charging time: about 1 hour
Standby time: 120 hours
Speaker impedance: φ8MM 32Ω
Microphone sensitivity: -42Db
Working temperature: -10-50ºC
Gross weight: 4g*2

2. Charging compartment parameters
Dual power digital display for headset and charging compartment
Input voltage/current: 5V/1A
Battery capacity: 1500mAh can be customized 2600mah or 3500mah
Gross weight: 75g

3. Packing information
Packing quantity: 100 pcs/carton
Gross weight of set: 115g
Net weight: 11.5kg
Gross weight: 12.3kg
Packing size: 42*40*32cm

4. Product List
Earphone*2, charging compartment*1, charging cable*1, ear cap*4, instruction manual*1