E-Greetshopping Nakano Miku Wireless Headphone

Specfication: Product Type: Bluetooth Headset Voice prompt: English Pei Dai style: head-mounted Function Use: Wireless headset Bluetooth version: V5.0 Bluetooth mode support: A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5 Frequency: 2.402-2.480GHZ, 2.4G ISM band RF performance: Receive sensitivity: -84dBm; Transmit power ≤4dBm Frequency response: 20 Hz - 20 KHz Signal to noise ratio (SNR): 70Db; Total harmonic distortion rate (THD): 0.1% Power indicator: blue light Headphone charging: rechargeable 400MAH lithium battery Charging port: mini 5-pin USB charging interface Normal charging time: about 3 hours Call duration: up to 10 hours Standby length: up to 250 hours Operating temperature: -20oC - 55oC Other features: Support status indicator, charging indicator display Size: 17.5*9*13CM Package Including 1* headphones 1* USB charging cable 1* audio cable 1* manual