150 Watts 6.5" Rechargeable Guitar Speaker Amp Combo SD USB Bluetooth Mic

The EMB Professional GMAB650 is a compact rechargeable speaker amp combo designed for portable music playback, guitar practice, karaoke, and small public-address use. It combines an amplified 6.5-inch speaker system with Bluetooth, USB, SD-card, AUX, radio, microphone, and guitar-input options in one carryable enclosure. This helps reduce the need for separate playback devices and basic vocal amplification gear for casual gatherings or practice sessions.

The GMAB650 suits users who need a simple all-in-one sound source for patios, small events, presentations, karaoke, or mobile music listening. Its built-in rechargeable battery allows operation away from a wall outlet for up to three hours under stated conditions. A carry handle supports moving the unit between rooms, outdoor spaces, and event locations.

The speaker uses a 6.5-inch woofer and 1-inch tweeter, with a stated 150-watt RMS and 300-watt peak power rating at 4 ohms. EMB lists a 20 Hz to 20 kHz frequency response for the system. Separate volume, microphone-volume, and tone controls provide straightforward adjustment for music and vocal use.

Bluetooth streaming lets compatible phones, tablets, laptops, and similar devices play audio wirelessly, with a stated operating range of up to 65 feet. For stored music, the GMAB650 includes USB flash-drive and SD memory-card readers with MP3 playback support. Its LCD digital display is also used with the built-in FM radio function.

For a basic portable sound setup, connect a microphone for announcements or karaoke, plug in a guitar for casual jamming, or add a wired source through the AUX or RCA connections. The included handheld microphone, microphone cable, remote control, charger, and RCA-to-3.5 mm cable help support common out-of-box uses. It can serve as a compact standalone system where a full PA system is unnecessary.

Key Features

• 150W RMS Amplification: Provides amplified output for small portable listening, practice, and voice applications.
• 6.5-Inch Speaker System: Uses a 6.5-inch woofer with a 1-inch tweeter.
• Bluetooth Streaming: Plays audio wirelessly from compatible Bluetooth-enabled devices.
• USB And SD Playback: Supports MP3 playback from compatible flash drives and memory cards.
• Rechargeable Battery: Enables portable operation for up to three hours as stated.
• Mic And Guitar Inputs: Supports karaoke, announcements, and casual instrument practice.

Design & Installation

The GMAB650 uses a compact 12.5 x 8.5 x 4-inch cabinet with an integrated carry handle and a front speaker arrangement consisting of a 6.5-inch woofer and 1-inch tweeter. Its cabinet material is not specified in the confirmed product information. An LCD digital display and top-panel controls provide access to playback, radio, volume, microphone-volume, and tone adjustments.

No permanent vehicle or wall installation is required; place the speaker on a stable, dry surface and charge it with the supplied power adapter before portable use. Connect the included wired microphone to the 1/4-inch microphone input, a guitar to the 1/4-inch guitar input, or an external source through Bluetooth, USB, SD, AUX, or RCA connections. For FM reception, extend the antenna as needed, and allow approximately eight hours for the stated charging cycle.