J99 TWS Wireless Bluetooth Earphones Mini Touch Control Stereo Deep Bass HD Call In-ear Earbuds Headset - Black

• Superb and unique design, touch control

• Automatic pairing, open lid connection

• Low power consumption-longer use time

• More stable transmission and connection

• Headphone power display

• Can be used together or used alone

• Supports binaural calls and super bass

• IPX5 Waterproof grade 

Specification:

• Headphone model: J99

• Bluetooth version: Bluetooth V5.0

• Transmission distance: 10 meters

• Transmit audio: Class 2 (-6dbm-4dbm)

• Charging voltage: DC 5V

• Working voltage: 3.7V

• Battery capacity: Headphone: 40mAh/ Charging case: 400mAh

• Charging time: <2 hours

• Listening time: about 6-7 hours

• Talk time: about 4-5 hours

• Standby time: about 80 hours

• Charging type: Type-C interface

• Product size: Earphone: 31*23*19mm; Charging case: 45*62*24mm

• Product Net Weight: Headphone 3.5g (single); Charging case: 35g

• Speaker: Drive unit: 10mm

• Sensitivity: 92DB±3DB

• Impedance: 32 ohm

• Frequency response range: 20-20000HZ