Philips SHB4305 BASS+ Bluetooth Earphones - Black

BASS+ · 12.2mm · 9Hz Driver

How Philips Achieves the Bass

The BASS+ designation on the SHB4305 refers to Philips's specific acoustic engineering approach to bass in this earphone - distinct from simply boosting low frequencies with equalisation, which creates muddiness and reduces definition in the bass range. The 12.2mm neodymium driver uses a PET (polyethylene terephthalate) diaphragm rather than the softer PEEK or mylar diaphragms common in budget earphones. PET has a combination of rigidity and light weight that allows the diaphragm to move quickly at high frequencies while maintaining the excursion (cone travel) needed for bass extension, reducing the compromise between bass and treble that affects single-driver earphones with very soft or very stiff diaphragms. The bass vents in the housing are acoustic ports positioned to create a tuned resonance that reinforces bass frequencies at the driver's output. The vent tuning sets a specific bass frequency at which the earphone's acoustic cavity resonates, boosting output at that frequency without requiring additional electrical power to the driver. Combined with the closed-type acoustic system - which seals ambient sound out and keeps low-frequency energy inside - the SHB4305's bass output is substantially greater than an unvented earphone using a driver of the same size. The 107dB sensitivity means the driver is highly efficient at converting electrical signal to acoustic pressure, which at 32Ω impedance means any Bluetooth device's amplifier output drives the earphone to high listening volumes.

BT 4.1 · 6hr · 110hr Standby

Wireless for Daily Use

Bluetooth 4.1 provides reliable wireless audio streaming within the standard 10-metre range for personal listening use. The SHB4305 supports A2DP (Advanced Audio Distribution Profile) for stereo music streaming, AVRCP (Audio Video Remote Control Profile) for media playback control from the earphone remote, HFP (Hands-Free Profile) and HSP (Headset Profile) for phone calls. These four profiles are the standard requirements for a full-featured Bluetooth earphone - A2DP and AVRCP for music, HFP and HSP for call audio. The 6-hour music playback battery covers most daily listening schedules for commuting, exercise and work. The 110-hour standby time is the most impressive battery specification - a standby time of over four days means the SHB4305 can be left powered on between sessions without the battery draining before the next use. Users who frequently forget to turn off Bluetooth accessories when not in use will find the 110-hour standby practically eliminates dead battery surprises. The Li-Polymer battery charges via USB - the included USB cable connects to any USB-A port (computer, wall adapter, power bank). Charge time is approximately 2 hours for a full charge.

Wing Tips · Oval Tube · 15g

Fit, Comfort and Call Management

The SHB4305's oval and angled tube design aligns the driver axis with the natural angle of the ear canal, reducing the leverage the earphone exerts against the canal wall and improving the seal without canal pressure. The wing tips - small flexible rubber extensions that brace against the outer ear's concha - provide secondary retention for the earphone, holding it in position during movement and preventing it from working loose during active use. At 15g total, the SHB4305 is exceptionally light for a wireless earphone; the battery and Bluetooth circuit are distributed along the connecting cable between the earpieces rather than concentrated in the earpiece housing, which keeps the earpiece weight low. The inline remote provides the most complete call management in this earphone category: volume up/down, play/pause, call answer, call end, microphone mute (mutes the outgoing mic without ending the call), call reject, last number redial, and the ability to switch between an active call and incoming music. The flat tangle-free cable construction means the connecting cable between the earpieces can be coiled and stored without forming knots or kink memory. The cable also has a built-in clip for attaching to clothing during exercise.

Technical Specifications

In the Box

Condition

Brand New - Retail Packaging

Warranty

Manufacturer warranty (Philips)

Delivery

4-5 Working Days · Fully Tracked