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DACOM DA-D3 - bluetooth headset specifications.

  Bluetooth headsets Specs >> DACOM >> DACOM DA-D3


Basic Specs DACOM DA-D3
Bluetooth Standard: bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs). Invented by telecom vendor Ericsson in 1994, it was originally conceived as a wireless alternative to RS-232 data cables. It can connect several devices, overcoming problems of synchronization.
2.1
Type:
mono Monaural or monophonic sound reproduction (often shortened to mono) is intended to be heard as if it were a single channel of sound perceived as coming from one position (unlike stereo, which uses two channels to convey the impression of sound coming from different places from left, middle, and right). In mono, only one loudspeaker is necessary, but, when played through multiple loudspeakers or headphones, identical signals are fed through each of the wires into each speaker, resulting in the perception of a one-channel sound, which "images" in one sonic space between the speakers (provided that the speakers are set up in a proper symmetrical critical-listening placement).
Profile:
Handsfree, Headset
Range:
10 m
Dimensions (WxHxT):
16x33x9.5 mm
Weight:
6.4 g
Battery DACOM DA-D3
Battery Chemistry: An electric battery is a device consisting of two or more electrochemical cells that convert stored chemical energy into electrical energy. Each cell has a positive terminal, or cathode, and a negative terminal, or anode. The terminal marked positive is at a higher electrical potential energy than is the terminal marked negative. The terminal marked positive is the source of electrons that when connected to an external circuit will flow and deliver energy to an external device. When a battery is connected to an external circuit, electrolytes are able to move as ions within, allowing the chemical reactions to be completed at the separate terminals and so deliver energy to the external circuit. It is the movement of those ions within the battery which allows current to flow out of the battery to perform work.
Li-Pol
Battery Capacity: Battery capacity is a measure (typically in Amp-hr) of the charge stored by the battery, and is determined by the mass of active material contained in the battery. The battery capacity represents the maximum amount of energy that can be extracted from the battery under certain specified conditions. However, the actual energy storage capabilities of the battery can vary significantly from the nominal rated capacity, as the battery capacity depends strongly on the age and past history of the battery, the charging or discharging regimes of the battery and the temperature.
70 mA*h
Talk time / standby:
4 / 100 h
Charging time:
1.5 h
Possibility of charging from USB:
yes
Functions DACOM DA-D3
Answer/end a call:
yes
Waiting/call hold:
yes
Voice dialing: Voice tags are used in automated speech recognition in a voice command device, allowing the user to "speak" commands. For example, using voice commands with an automated device, such as an IVR telephone prompt or to dial a contact on a mobile phone.
yes
Last number redial:
yes
Additional functions:
status indicator
Detailed Specs DACOM DA-D3
Fastening:
with earhook
Display:
no
Removable panels:
no

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