9
10
Wireless Bluetooth
Headset
Model: D900
Items
Parameters
Warranty card
Instruction Book
Driver
8mm copper-ring loudspeaker
Impedance
16
Ω
Bluetooth version
V4.0
Power level
CLASS II DSP phase compensation
Working voltage
3.2V-4.2V
Sensitivity of microphone
-
42dB±2dB
Bluetooth
frequency brand
2.4-2.48GHz
Bluetooth distance
10M
Audio transmission
protocols
A2DP/AVRCP high quality stereo
Power supply indicator
Red light lightens when charging, and blue
light lightens if the headset is fully charged.
USB charging cable
Product List
Main Characteristics and Parameters
Characteristics
1. True wireless abilities: Syllable realizes “movement and wireless control”, and everyone can share
music within 10m.
2. Limitless charging: Matched storage box is provided with built-in Lithium electric device that can
provide charging support more than six times to earplug.
3. Sing headset or both headsets: Each earplug is provided with a complete set of circuit system so that
you can use a singe one or both two.
4. Active noise reduction: Adopt active noise reduction circuit design in combination with in-ear earplug
design to effectively filter outside noises.
5. Comfortable and convenient: Earplug and ear-hook are made of food-grade silica gel material in
combination with the design to avoid falling off, which makes you comfortable and relieved.
6. One button to answer the phone: One button to answer the phone with multiple functions keeps you
away from tedious life, convenient and fast
7. Color in riotous profusion: Heyddo D900 Bluetooth headset is possessed of multiple color combination,
satisfying your “colorful” needs.
Main Characteristics and Parameters
