Features:
Wireless Bluetooth 4.0 dual mode noise reduction headphone， compatible with most Bluetooth enabled devices like iPad， iPhone， Samsung， Blackberry， HTC， Nokia， LG， Motorola， Sony Ericsson， etc.
Can be connected with two Bluetooth audio devices at the same time.
1.8 times as high-fidelity speakers， strong low frequency.
Remarkable active noise reduction function， a good choice for listening to music， watching movie， chatting online etc.
Built-in microphones for clear conversations.
Comes with a 3.5mm cable that you can use to connect the headphone to devices without Bluetooth.
Built-in a lithium battery (can be charged via USB).
Standby time 320 hours， continuous working up to 8 hours.
High quality and fashionable appearance.
Adjustable length hinges and soft earmuffs for comfortable wearing.
Foldable design for easy carrying and storage.

Note:
1. The button of headphone is unavailable under wired connection mode.
2. Bluetooth mode won't work under wired connection mode.

Functional keys of headphone:
1. ON/OFF key: power on， power off， play， pause， stop， answer call， hang off call， pairing.
2. Volume+ key: increase volume of music or phone talking.
3. Volume- key: decrease volume of music or phone talking.
4. Next key: next song
5. Previous key: previous song

Specifications:

BrandSyllable
ModelG18
ColorWhite， Black
Impedance32 OHM
Bluetoothv4.0 + EDR
Bluetooth receiving range5~10m
Frequency response20~20，000Hz
Frequency range2.402~2.480GHz
Power levelClass II
Operating voltage3.0V~4.2V
Sensitivity-86dB  0.1%
Microphone sensitivity-45±3dB
Audio transmission and remote control protocolA2DP / AVRCP
Working timeUp to 8 hours
Standby time320 hours
Power supplyBuilt-in battery
Charging time2-3 hours
Item weightApprox. 336g / 11.85oz
Package sizeApprox. 22.7 * 15.8 * 11.2cm / 8.9 * 6.2 * 4.4in
Package weightApprox. 887g / 31.3oz

Package Included:
1 * G18 Headphone
1 * USB Charging Cable
1 * 3.5mm Audio Cable
1 * Adapter
1 * 2-pin Aviation Plug
1 * Portable Bag
1 * Cleaning Cloth