Bluetooth chip: V4.1
Bluetooth support: : HSP, HFP, A2DP, AVRCP
Support for audio decoding format: SBC
Transmission power: Class 2
Transmission distance: 10 meters
Frequency range: 20 hz - 20 KHZ At 0.179 V
Battery: built-in rechargeable, 3.7 v / 70 polymer lithium battery
Charging voltage: DC4.75-5.25 V
Charging time: about 2 hours
Playback time: about 5 hours
Standby time: about 180 hours
Weight: about 50g

• MUTIL-FUNCTION: answer/end /Refuse/ waiting the phone call,mute,volume,More links ,Listen to the music ,The noise reduction ,Song switch up and down ,Voice to quote.
• TRUE HD HIGH FIDELITY SOUND - Featuring latest Bluetooth 4.1 CSR technology and state of the art acoustic components that produce incredible sound quality with deep bass and crystal clear treble.
• STRONG BUILT-IN RECHARGEABLE BATTERY: Bluetooth sports headphones requires appreox 2 hours to get full-charged while can last approx 5.5hours music playback time, no worry about your wireless sports headphones out of battery.
• COMFORTABLE AND SECURE FIT WITH IPX-7 WATERPROOF RATING - ActivBuds feature Ergonomically designed flexible ear hooks with gel flex silicone earbuds to ensure your headphones stay comfortably firm in place to guarantee fatigue free ears and tangle free comfort.
• HD SOUND and NOISE CANCELLING: Wireless Headphones have incredible HD stereo sound quality with bass, soaring highs and clear midrange. Noise cancelling earphones with CVC 6.0 technology reduce outside noise and offer strong signal. The Bluetooth earbuds with mic and volume control deliver astonishing acoustics with bass. Good sports earphones in a lightweight package. Have fun with Bluetooth headphones ZEUS SPORT!

MUTIL-FUNCTION: answer/end /Refuse/ waiting the phone call,mute,volume,More links ,Listen to the music ,The noise reduction ,Song switch up and down ,Voice to quote.H-Risen