Wireless Bluetooth Headset 5.0 Tws In Ear $ 12.51 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: 3215% ACR: 3215% ohm Sensitivity: 99dB3(at 1.0KHZ) 1mW Frequency range: 20Hz to 20KHz Rated output power: 2mW Maximum output power: 5mW Speaker outer diameter: 10*2.5mm
