2020 New PC Headsets Office Over Ear Wired Headphones for Phone Laptop Gaming wireless Bluetooth earphones and headphones for girls sport and SD CARD with microphone headset in the phone

specification: Material: plastic, metal Color: blue, green, orange, red, rose red Functional use: wireless headset, voice headset Bluetooth version: V4.0 Bluetooth mode support: A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5 Frequency: 2.402-2.480ghz, 2.4G ISM band RF performance: receiving Sensitivity: -84dbm Transmit power: up to 4dBm. Frequency response: 20Hz-20KHz 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 port Normal charging time: approx. 2.5 hours Talk time: up to 10 hours Standby length: up to 250 hours working temperature: -20 ° C -55 ° C Wearing method: head-mounted Uses: game audio headphones, TV headphones, ordinary headphones feature: HD sound. Stylish design. The sound quality is great. Easy to use. Low power consumption Foldable for easy carrying. Ergonomically designed for a comfortable head. Package Contents: 1 earphone 1*USB charging cable 1* instruction manual