אוזניות Bluetooth אלחוטיות 5.0 TWS באוזן

Product information:

Bluetooth version: Bluetooth 5.0
Transmit power: 8dBm+/-2dbm
Working frequency band: 2.4G ISM band (2.402-2.480GHZ)
Charging voltage: 5V
Working voltage: 3.7V
Battery specifications: polymer lithium battery (45mAh with protective plate)
Support protocol: A2DP1.3/HFP1.7/HSP1.2/AVRCP 1.6/EDR/AAC
Headphone weight: about 5.0g
Speaker parameters:
Ohm: DCR: 32Ω ± 15% ACR: 32Ω ± 15% ohm
Sensitivity: 99dB±3(at 1.0KHZ) 1mW
Frequency range: 20Hz to 20KHz
Rated output power: 2mW
Maximum output power: 5mW
Speaker outer diameter: Ф10*2.5mm