JBL Tune 510BT Wireless Headphones

JBL Pure Bass Sound
Wireless Bluetooth 5.0 Streaming
Up to 40H battery life and speed charge (5mins = 2H)
Multi-point connections
Hands-free calls
Lightweight, comfortable and foldable design
Ask Siri or Hey Google
Technical specifications:

Driver size: 32mm/1.26" Dynamic driver
Power supply: 5V 1A
Weight: 160g/0.35 lbs
Headset battery type: Lithium-ion battery (3.7V/450mAh)
Charging time: 2 hrs
Music playtime with BT on: up to 40 hrs
Frequency response: 20Hz – 20kHz
Impedance: 32 ohm
Sensitivity: 103.5dB SPL@ 1kHz 1mW
Maximum SPL: 95dB
Microphone sensitivity: 29dBV@1kHz/Pa
Bluetooth version: 5.0
Bluetooth profile version: A2DP v1.3, AVRCP v1.6, HFP v1.7
Bluetooth transmitter frequency range: 2.4GHz – 2.4835GHz
Bluetooth transmitted power: <8dBm
Bluetooth transmitted modulation: GFSK, π/4 DQPSK, 8DPSK
Maximum operation temperature: 45°C