DS300 Noise Cancelling Transperancy Mode Bluetooth Earphone Earbuds

Bluetooth version Bluetooth 5.0

Chip BT8892A charging time about 60min speaker Ø13mm

Support agreement HFP HSP A2DP AVRCP size Headphone size: 25.1*21.5*31mm

Charging box size: 60.8*22*45.4mm distortion degree <5%

Operating range: 15 meters of barrier-free distance (with iphone11 50% volume) Weight Earphone weight: 3.8g

Charging box: 46.4g sensitivity (speaker) 113±3dB

Talk time about 3H Music time about 4H Sensitivity (Mic) -42±3dB

Noise reduction Yes Antenna type Ceramic antenna Impedance 32

Charging current about 50mA Standby current No noise reduction enabled. Transparent mode 0.75～1mA Signal to noise ratio >85db

Turn on noise reduction. Transparent mode 3～4mA

Talking current 10～12mA 1KHZ 0Db music playing current 7.5～9.6mA Frequency response range 20-20KHZ

Shutdown current 7.5uA battery capacity 45mAh battery type polymer battery

  3.2 Basic parameters of the charging box

Battery type Lithium-ion polymer battery

Charging box battery capacity 3.7 V 360mAh

Wired charging time: about 80 minutes

Quiescent current about 30uA

Wired charging current maximum about 330 mA

Wireless charging current about 130mA

Wireless charging time about 3H

Dual earphone charging current about 150 mA

Charging input voltage DC 4.8~5.4V

Charging output voltage DC 4.7~5.4V

Full battery voltage 4.1~4.25V

Package Includes:

1 x Earphones

1 x Charger