• 9D surround sound, deliver a high quality audio listening experience with clarity, and a smooth bass response for enjoyment of all styles of music

• Graphene bass diaphragm, HIFI high frequency technology, 10mm dynamic speaker unit

• Two connection methods: single/double free use

• Support binaural HD call, Bluetooth-compatible 5.0 auto pairing

• Built-in CVC8.0 active noise reduction IC

• Touch control, play/pause, answer/hang up call, wake up Siri, volume +/-, previous/next song

• With battery digital display function of wireless earphones, you can easily check the battery level

Specifications:

• Chip: Bluetrum 5376T

• Bluetooth-compatible version: V5.0

• Support: HFP 1.7, HSP 1.2, A2DP 1, AVRCP1.6, SPP 1.2 and PBAP 1.0

• Charging voltage: DC 5V

• Microphone sensitivity: -42Db

• Working temperature: -10-50°C

• Frequency response range: 20-20000Hz

• Sensitivity: 120dB +/- 5dB

• Transmission distance: 10m

• Charging time: about 1 hour

• Cumulative battery life: about 220 hours

• Battery Capacity: Charging box: 800mAh polymer lithium battery; Earbud: 40mAh

• Charging box size: 78.7*45.8*30.8mm

• Earbud size: 29.2*17.3*23.22mm