Bluedio T4S active noise cancelling Bluetooth headphones are fashionable accessories for music lovers. The headset eliminates background noise and it is tuned meticulously for discerning ears. You are able to immerse in the wonderful HiFi and bass, with vector flow technology ( VFT ), high-grade 57mm driver units. Don't worry about the low battery level. With the latest fast charging technology, you only need to charge for 10 minutes to listen to songs for 3 hours. 

• Active noise cancelling technology, provide perfect sound effect

• Soft padded earcups for long time comfortable wearing

• Incredible HiFi and bass with vector flow technology and 57mm big titanized driver units for ultra clear sound

• Fast charging technology gives you 3 hours long acoustic feast after 10 minutes' charging whenever you want

• Foldable design for easy carrying

Specifications:

• Brand: Bluedio 

• Model: T4S 

• Features: Active Noise-cancelling, Extra Bass 

• Function: Answering Phone,Bluetooth,HiFi,Microphone,Noise Cancelling,Song Switching,Voice control,Voice Prompt 

• Cable Length (m): 1.5 m 

• Charging Time.: 1.5 hours 

• Connecting interface: 3.5mm, Type-C 

• Connectivity: Wired and Wireless 

• Driver unit: 57mm 

• Frequency response: 15Hz-25KHz 

• Impedance: 16Ω 

• Music time: 16 hours

• Plug type: 3.5mm, USB Type-C 

• Sensitivity: 116dB 

• Standby time: 650 hours

• Talk time: 16 hours

• Bluetooth distance: W/O obstacles 10m 

• Bluetooth protocol: A2DP, AVRCP, HFP, HSP 

• Bluetooth version: V4.2 

• Battery types: 600mAh Li-ion Battery

• Product size (L x W x H): 18.80 x 9.00 x 20.80 cm / 7.4 x 3.54 x 8.19 inches 

• Product weight: 0.3340 kg

Compatible with:

• Apple iPhone, iPod, iPad series

• Samsung HTC Blackberry etc. Bluetooth enabled smartphones

• Tablet PCs

• Laptops