boombox ลำโพงบลูทูธ เสียงดีเบสหนัก 80 วัตต์ จับคู่กันได้

General Specifications Frequency response(50Hz-20kHz) Signal-to-noise ratio80dB Music playing timeup to 5-6 hours (Varies by volume level and music content) Weight5.25kg SupportA2DP 1.3, AVRCP 1.6, HFP 1.6 Power supply20V/4A Dimensions Dimensions (H x W x D)254.5 x 495 x 195.5mm Transducers4-inch woofer x 2, 20mm Tweeter x 2 Control and Connection Specifications Bluetooth version4.2 Bluetooth transmitter power0-9dBm Bluetooth transmitter frequency range2.402GHz-2.480GHz Bluetooth transmitter modulationGFSK, 8DPSK, π/4DQPSK Battery Battery charge time<6.5 hours Battery typeLithium-ion Ploymer (74Wh)